The Ultimate Guide to Fittings and Couplers for Air Tools - Gear Up With Gregg's
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- เผยแพร่เมื่อ 3 มิ.ย. 2024
- Today on Gear Up With Gregg's, we will be discussing quick couplers and the many different styles and formats that are available. We will navigate you through the tricky world of air coupler identification using a true to size plug identification guide located in the Gregg's catalogue.
Chapters
0:00 INTRO, WHAT COUPLERS ARE USED FOR
1:01 ANATOMY OF COUPLERS
2:21 CATEGORIES OF COUPLERS
2:38 STYLE CATEGORY
4:05 BASIC FLOW SIZE CATEGORY
5:50 CONNECTION CATEGORY
7:39 IDENTIFYING AIR COUPLERS
11:10 UNIVERSAL SOCKET
11:41 WHAT STYLE OF COUPLER IS BEST FOR ME?
12:28 WHY SO MANY COLOURS AND MATERIALS?
14:01 OUTRO
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Thanks. I'm almost 32 and bought my first compressor. I wasn't aware that there were so many options.
Every shop I ever worked at used the "M" style couplers, so that is what all of my stuff was set up for. Now Milton came out with the "V" style coupler and it has a higher flow rate and all of the older male "M" style can fit in the newer female "V" style. So I replaced all of my "M" style female couplers with the "V" style, and replaced any of the ends on my high flow tools (impacts, die grinders, and air hammers) with "V" style male connectors but left all of the lower flow stuff (tire air chucks, blow guns) as type "M".
I was so impressed the first time I used a "V" style plug that I bought a bulk pack of them and changed everything over (about 15 or so of them) plus 4 or 5 couplers.
Wow! This is SO helpful!
I'm new to the compressor world and I can't believe there are so many types of fittings!
getting my first compressor today whats ur experiance after all these months anything i should do
@@akeelshah7904 get Milton high flow fittings. They make all the difference. Also get appropriate sized hose, the bigger the ID the more power you'll have. Milton fittings are great because they fit both M style and V style so you don't have to worry.
I like the Milton V style high flow couplers. The V style coupler works with both M and high flow V style plugs.
I'm having to use my compressor for the first time and my head is spinning! hahaha Your video is incredible. I'll be watching it many times over! hahaha Thank you. You teach well.
Excellent video. You had all the answers to the questions I had plus more! Thanks.
Nicely done and good production unlike many on the web.
Excellent presentation. Structured well, explained clearly, good production value. I wish you could do a lot more topics, I can learn a ton from your instruction!
Most informational video I’ve found on air line couplers. Good work! Great video!
Thank you for this video it was very helpful to have a thorough run down of all the differences.
Excellent comprehensive vid, thanks for posting it 👍🏽
Good lord I never knew there were so many kinds of couplers for air hoses. PhD level stuff. Building portable compressor for off roading and I will have to study for 12 hours before getting the couplers.
My rule of thumb is:
As much air flow as you can get.
And if you have a little baby tool that needs 20psi (like a paint gun) you will need a regulator at your device anyway.
Also go to your local hardware store and auto parts store to compare what's most common on the shelf.
Extremely helpful. Thanks!
Great video, Great pictures and GREAT clear audio.
Thanks!
And then is the BSP (British Standard) which is very close to a NPT type quick connects. The threaded tapers are a bit different so they are not met to be interchanged. Then there is the BSPP (British Standard Parallel Pipe) pipe thread standard which is basically a straight thread. I ran into this when I bought a HVLP Paint spraying gun trying to adapt to my current air tool NPT system of disconnects. I'm 66 yrs old and been in the mechanical field all my life and hadn't dealt with the British systems much. The consumer grade HVLP paint guns are made in China which mostly use the BSP and/or BSPP type standard or a slight variation of it so I had to go through a learning curve to make sense of those type connectors.
Awesome video - thanks for posting! :D
Great video, really explains everything well
We're glad you enjoyed it. Thanks!
great presentation, please keep them coming. thanks alot.
You got it! There will certainly be more to come!
Thanks! Best explanation I’ve heard!
Great video. Thanks!
Great Video Learned a lot.
Loving these jams, Greg
Very educational video--thankyoufor posting it!
Thank you for supporting our Canadian Channel! Stay tuned for more to come!
Great informative video. My husband was diagnosed with Young Onset Alzheimer’s, so I am the one doing all the home repairs now. Our air compressor had the tire inflator end. Unfortunately I have no idea where he put the other accessories. We have a Rigid air compressor that came with everything including the brad & nail gun. The compressor itself uses a 1/4” quick connect coupler, that match the tools. However I want to be able to use the compressor for other things. Now I know how to determine the plug type on the tools, so I can by additional accessories “again” 🤪 Thanks again for the video.
great video!
Thanks a lot , very helpful video
Thanks for your comment. We appreciate your feedback. Stay tuned for more great content!
respect from Turkey bro , good video
Good video, thanks. Taking the mystery out of these fittings!
Glad it was helpful!
Greetings from Louisiana. Thanks Greg!
Nice video thanks
Great video!
Thank you for supporting our Canadian channel, we're glad you enjoyed it!
This is very good information, but for granddads old tool I didn't need to find a new style female socket as my workshop uses 1/4" Nitto so I only had to fit a new Nitto style male plug in my draw and hey presto it now fits all my existing hoses
💥 Would LOVE to see a chart showing how much force at 120# is needed to 'couple' these different styles. 👍😎✊
The hi-flow Milton's are insanely difficult at 120#
Sooo confusing, but great explanation. The downloadable chart will be invaluable in my mission to get my old compressor up and running. Thank you.
Assuming you are talking about the chart mentioned at the 8:02 mark, this chart is accessible online at www.greggdistributors.ca/catalogue.php and then jump to page I12. Thanks for watching our video!
@@GreggDistributorsLP Where would chart be found on website? - Is it in the downloadable catalog? I clicked on link, it's the homepage.
When I was a young Bloke there were three styles of quick connect fittings. There were RYCO and PEM. There were different diameters for different air capacities, but none was intrinsically better than the other.
In the meanwhile every manufacturer wanted in on the action(profit) so everyone said that theirs was better. They were all basicly same but they had to be of different design so avoid patent problems.. As a result there are about 12 different styles which don’t connect with each other.
For 60 years I have standardised on RYCO because it suits me.
Stavros
Why did you leave out the V style high flow fittings? Even with their 1/4" bodies, they supposedly have a CFM of 74, which is higher than the H style with the 3/8" body. I'm not sure how that is possible though and I am skeptical. I'm looking for some "expert" opinions or explanations.
wow this is cool
What the best couplers to use for Auto Painting and spray painting a hole vehicle and the fitting too.
Commenting on the video for the algorithm
Buying a pack of f&m connectors is a sure way to make sure they always mate up.
Wow, years working with wrong couplings grrr... thank you, Maurice :)
Locally almost everyone uses the M style "Milton" so that's what I went with. And brass not brass plated steel.
The city uses a twist-on connector around an inch & ½ for jackhammers. We used them for traffic light loop (detector) installation for cleaning the cracks after sawing. We had some oddball reducers to make it work. On my personal compressor, I have automotive on the compressor, and industrial on the hose end. Why? Industrial doesn't like a sharp bend without losing some air. A hose is dragged out to the car with more stress on the compressor side. If I had used a hose reel, I could have stuck to one connector.
Can garden/water hose shut off valves work with stuff like these? The valve I bought is called EXPERT GARDENER. I got it from the gardening section at my local Walmart store in Danville Illinois. It's the "Y" shape type with two on/off switches & it is brass so I'm curious if it too can be connected as an extension to to my brand new airbrush compressor combo kit in which the new compressor I have is the AVANTI brand that I bought from Harbor Freight. If so, what kind of coupler would be the best option to prevent & stop any kind of possible leakage/leaking?
Shocked to NOT SEE the Milton V-style on their Identification Chart! That is their high flow style that flows around 60-70 SCFM in 1/4 inch.
glad you here, was trying to find if anyone compare 1/4 high flow and 3/8 as got compressor I want but sadly found it is 1/4 fitting and not 3/8 as of the 1/2 thread
Great video for a noob like me.
So do you recommend universal fittings for easy connection plugs?
An informative, well presented video, thank you. I printed off the Plug Identification chart from your first link, above. Are the catalogue pages size A4 , or another size?
Thanks for watching, we're glad you enjoyed the video and found it useful. Actual print size of catalogue page is 10.5" h x 8.125" w.
@@GreggDistributorsLP Thanks for the reply. (By your edit I see you did catch on to what I was asking re A4 paper size). :)
Why I asked? If your catalogue's to-scale outline of the plugs is printed on paper 10.5" x 8.125" it makes me wonder if that page will reproduce the same to-scale plug outlines when I download the page and print it on my printer's local standard size A4 paper (11.69" x 8.26"). I think there may be a bit of stretching and distortion on the A4 page, which kind of defeats the purpose of the exercise.
Excellent info! Also shocking to see that thread size doesn't matter and actual standard plugs found are rated higher than though. Makes you wonder if the latest high flow popularity is justt a marketing trend.
Would love to see a hydraulic coupler video from you guys!
We will keep this in mind for a future video! Thanks for supporting our all Canadian channel and stay tuned for more product knowledge to come!
Nice ❤❤❤❤❤❤❤❤👍
Hi, thanks for the video. I was considering high flow air fittings for our new 3/8" air hose that calls for 1/4"-18 NPT fittings. I find this confusing. The hose says 3/8" but the thread size says 1/4".
Further in looking for high flow couplers I found many said V-style which I don't understand what that means either. Currently I also know I have Industrial style plugs/fittings for hose(s) for our compressor. Thanks for your input!
I think I had the same question: can I use a 3/8 hose with a 1/4 thread (or do they even make sure a hose)
@@skre1170 yes
excellent and well produced video. however the number of various couplers long ago convinced me to ensure compatibility was to first throw away whatever I had and by quality couplers of a standard type. since all tools now have that coupler I don't have to worry about identifying. secondly it's worth mentioning the scfm doesn't seem to be a very useful measurement for pressurized air used in a shop and is very misleading when used in quoting air compressor measurements. this is why I'm moving away from air tools to electric. a home shop 110v compressor simply can't keep up with most tools. tried too many times finding a compressor that would and been disappointed. best you can do is get a larger tank but that only improves the number of seconds you can use the tool before it has to cycle
My compressor regulator only has the gage move when air is flowing threw it ? There are regulators that allow you to to reduce the psi without any pressure moving .
Whats f to h ex difference?
forgot AMT and V
I like that universal female coupler. I have an air tank with a 1/4 output with a female 1/4 coupler. Do u have a conversion coupler from 1/4 to a 3/8 female coupler ? Reason to run power tools like air wrench.
We do have a 3/8" male thread universal coupler (greggdistributors.ca/Maintenance-Repairs-and-Operations/Air-Couplers-and-Plugs/per2um3b?resp_group=Default,Variations,ItemProperties), but changing this out will do nothing to increase the flow or performance of the compressor compared to the 1/4" coupler that is already on your tank.
Great information. I'm just installing my air compressor setup and I'm having trouble with the hose reel. I'm using the purple 1/4 Milton V-style fittings throughout the whole system for maximum power to my impacts, but the hose reel looks like its going to be the bottleneck. It has a swivel on the end of it so that when the reel rotates, it doesn't twist the hose that connects it to the compressor, and there is the tiniest air hole in the swivel joint. I've scoured the web for a high flow swivel fitting, but I've found nothing so far, and what I've found are regular flow fittings for more than the price of the reel! Am I missing some crucial detail and is there even a product out there for what I'm looking for?
Hi, Yusuf! Thanks for stopping by. After looking into this situation of yours, we've determined that the best option for you would be the Chicago Pneumatic 8940171571 Air Flex Swivel Connector. Unfortunately, that is the only product out there that would work. Also, the pricing is based on the material, as they’re constructed of air craft grade aluminum. Details here > greggdistributors.ca/Tools-Shop-Equipment-and-Storage/Pneumatics/Pneumatic-Tools/air-tool-accessories/chi8940171571
@@GreggDistributorsLP sir what about the thread pitch of all of the connectors yoi discussed, is that NPT or BSP? Especially the female quick connector that you will connect to the gate valve of a certain air compressor.
@@GreggDistributorsLP You didn't understand Yusuf's question. You suggested a hose end swivel.
He is asking how to fix the bottleneck at the right angle swivel at the center of the hose reel. It is not high flow and negates all the high flow fittings you put everywhere else.
Yusuf, look up "super swivel". it is the standard for high end hose reels. you will need a few reducers, since they are all 1/2 npt. Get 1/2 to 1/4 npt reducers to use it. there will then be a path for air that is at least as big as the V-connects.
cheers.
Great videos, having trouble finding information on fittings for the gun and the compressor hoses. I bought a 30 gallon compressor, two 50ft 3/8 lines, and all the fittings on the lines are 1/4inch npt. Why is this standard, doesn’t make sense to me. Shouldn’t I get 3/8 line with 3/8 fittings? The Flexzilla hose has high-grade aluminum 1/4 fittings on each end, compressor is 3/8, and most fittings on guns and tools are 1/4….. so just swap these fittings out for high flow? Or change the hoses to have 3/8 fittings? What do you use and what do I need and does it really make a difference for hvlp. Thank you sir
For some reason it doesn’t make sense to me to have 3/8 line just to get restricted at quarter inch fittings
Hello Reggie, the pressure required to run air tools is not high pressure, because of this the restriction point will have a negligible effect on the tools performance.
Bought a house with air compressor and lines already installed in garage. Have all female couplers. But Have no idea what I’m supposed to connect to them . He installed all copper lines so you could connect with ease wherever you’re at but once again, I have no idea what to buy to be able to connect to the female coupler. I’m assuming I have to remove all 6 that are loctite on and replace them all and start from scratch.
Why is there no mention of the psi vs max air flow?
I've used them all and none is better than the Flexzilla brand. The 1/4 inch size flows almost as much as the 1/2 inch. While the Flexzilla will work with other brands, it is best to go all Flexzilla for the best flow and most reliable seal and function.
incredible video, well done
Too much airflow will break the tool lol. That's your PSI setting. You could have a 100 CFM but if the tool only takes 10 it's still only taken 10.
Kevin Roberts That was funny. That is like people that think connecting a 12V light bulb to a large car battery will cause a problem as the battery is too large for the little light bulb. 12V is 12V no matter the size of the battery and the bulb will take the current it needs. Same for air tools. Provide the proper regulated pressure and it doesn’t matter the flow capacity of the fittings as long as they are at least as large as what the tool needs to operate correctly.
Suppose that your tool spins rather easily (taking little air pressure to do so) but is rpm limited. Air flow is the factor that regulates the rpm not pressure. Yes, you can damage an air tool.
Yep he’s dead wrong. You can put the hose direct if you want. Stupid comment by the guy in the video
@@NMranchhand Maybe if you buy Chinesium tools. Well built tools will take the airflow they need as long as you don’t exceed the pressure rating. Pressure is what causes airflow. Quality air tool makers design their tools so that at their maximum rated pressure, they will consume only the amount needed and not any more. The only way to get more airflow through the tool and damage it is to increase the pressure above what the tool maker specifies.
Hello! Is there a socket designed to be “open” when disconnected?
Yes, but they are typically used in pressure washer applications, an example of one can be found here:
greggdistributors.ca/hose-and-fittings/Industrial-Fittings/Industrial-Fittings-Quick-Disconnect/per1ef1b?resp_group=Default,Variations,ItemProperties
Gear up with Gregg, hello I’m Dave. Well sir who are you?! Dave or Gregg 😂
Air flow should be the largest you can afford. If you are worried about too much air flow, you can get a regulator to control this. Air impact guns require both volume and pressure, not just pressure or volume alone. The more, the better. I run no less than 1/2 inch lines and couplers.
Best bang for the bucks are truck trailer air brake coupler
What do you use for swivel fittings
👍
Drill- Packedge in typical box, came with a tool bag (added bonus), two batteries, one charger, drill, and driver. Two words "plenty of Torque" th-cam.com/users/postUgkxW1vOBRCMrgTCDEijzpVzDWsgI-Jm2iQv well I guess that's three. Nice upgrade from current setup. Has belt clips, I don't think I will be using those. Driver and drill were bigger than what I expected but it is an upgrade from the current setup. For the money I would say that this is a great setup for Professionals and DIY/Weekend warriors.
Wonderful video, I just wish you would have gone more into the different colors. You mentioned the colors but, does one color mean no oil, like I would guess blue for example, or would it be the red or the green? If so you stated some have oil and some don't so why would there be three colors? Does the colors have meaning?
Hello Wizzarin.
The Function of the colours is to dedicate line use, so you can ensure you never use a lubricated line for a dry line application, preventing cross contamination. Industrial (Type D): Red. Automotive (Type C):Blue. ARO (Type B): Green.
@@GreggDistributorsLP ty for the info
What means 1/4'' NPT1 ?
Somehow when I connect Stanley 166005XSTN It moves around.. Maybe such connection only for other Stanley tools?....
NPT stands for National Pipe Thread and this is referring to the threaded part of the coupler. When connecting your air hose to another coupler you need to ensure that it is the same style type as what is on your current hose, other wise it will not form a proper connection. See the time stamp 2:21 of the video on the style types.
My local store said I have pressure pot which have Nipple (MP20F) but they sell only OP20F ..
So looks like I need to order air hose from America..
I hope HC25Si Scheppach will fit and not leaks..
Or maybe you can suggest parts for that compressor?
Dave, you are my last hope. I need to look for hose with MIC20F coupler?
Can you put a high flow coupler directly to your compressor?
You should be able to, but if you're unsure, it would be best to consult with your air compressor manufacturer.
T is actually the automotive one. A is Aro
@MichaelKingsfordGray www.grainger.com/category/pipe-hose-tube-fittings/hose-products/hose-fittings-couplings/multipurpose-hose-fittings-couplings/multipurpose-quick-connect-air-couplings/aro-quick-connect-air-couplings
I looked at your website and can’t find the universal socket. Please help...
Use this link:
greggdistributors.ca/Maintenance-Repairs-and-Operations/Air-Couplers-and-Plugs/per2um2b
If you select the "Catalogue Page" tab, you will see there are four quick coupler options that are the universal model you are looking for. Hope this helps, thanks for watching our video!
Are air tools being replaced by battery?
I'm using the chart on this video to identify a fitting. I was told I need.
There's 2 G style fitting in the chart, what's up with that?
Take a look at 2:49 in the video, you can see that one G is .125" and the other is .375" with a slightly different style
Mine aint on there damn air chinese pistol, looks like a pm c type?
T for me they work
How come you don’t verify the connections with pressure to the consumers to be leak free?
Are female sockets normally closed air tight and open whenever a male plug is inserted into them?
That is correct. Female couplers are closed when not connected with a male plug. Check out our selection of air couplers and plugs here greggdistributors.ca/Maintenance-Repairs-and-Operations/Air-Couplers-and-Plugs?resp_group=Default%2cVariations%2cItemProperties&page=3
Can you run fluid through these?
Most of the couplers shown in this video are for air only. However, we do carry a wide range of couplers that can be used for fluids. Check out our website to help find the right coupler for your application. greggdistributors.ca/Maintenance-Repairs-and-Operations/Air-Couplers-and-Plugs?resp_group=Default,Variations,ItemProperties
Wouldn’t you also need to identify the if the diameter of the tip is 1/4, 3/8, 1/2 to identify the female end of the coupling?
Also can you buy a 1/4, 3/8, 1/2 male universal coupler and never need to worry about the style?
The tip diameter is helpful but it does not always allow you to determine the correct interchange. As for the second question, the answer is unfortunately, no. The only universal quick coupler we are aware of is universal for 1/4" bodies only.
No nitto style? They flow 50-65 scfm depending on the maker (bigger centre bore)
Ive gone with Nitto. All my inherited fittings were tarnished from 50yrs of use, so upgraded everything. And now I understand the use for brass, I'll fit that to the car. Dont forget dust caps ! ;-)
@@DOCWHOK9 dust caps xD never used one and never had an issue, might in the future now that ive said that xD
but nitto are probably the best fittings for standard air lines unless you get bigger hoses it's not really worth buying high flow ones as the cost vs performance difference is pretty miniscule
@@DOCWHOK9 Americans don’t use bsp fittings which nitto use. Americans use npt style thread which nitto don’t make.
Nitto is good but the euro style is a step up.
Gear up with Greg hi my name is Dave!
What did you do with Gregg?
Gregg's not here man....
I personally use truck air brake coupler, they are cheap , full flow and widely available
The male plug on my tank isn't in the chart. :-(
So if I have 3/8 hose I should have 3/8 connectors not the 1/4 npt ones I have ?
No, that's not the case. The most common air hose is a 3/8" hose with 1/4" npt ends, and this is ok to use for most applications. You would only need to up the size if you were concerned about restriction and not getting enough CFM of air to your tools.
@@GreggDistributorsLP not really sure if iam restrictioned but have bought air guns that don’t seem to do much better then old ones so was wondering that’s my issue in conjunction with length of hose. So would I be better to go with the new hi flo connectors or go to 3/8 connectors ?
@@limitlessworx5724 Best bet is to start at the source. See what your compressor is rated for vrs what your air gun manufacture recommends for proper CFM and PSI. If your compressor is not putting out what is required, it really won't matter what hose you use as it won't be sufficient. If the compressor and the gun are matched up, then it may be worthwhile to switch to a bigger hose with bigger ends and try to use the higher flow quick couplers such as the P style 3/8 flow or even the G style 1/2 flow, though the G style is typically reserved for a 3/4" - 1" impact guns for heavy duty truck shops. Here's a link to the catalogue page to help with your selection:
greggdistributors.ca/search?q=I9&resp_group=Default,Variations,ItemProperties&page_size=8&view=list&terms=CatPage:I9
@@GreggDistributorsLP I have porter cable max psi 155 60 gallon compressor, and the current gun is older craftsman so don’t know what specs are but iam getting the IR 2235Timax gun with 3/8 hose
@@limitlessworx5724 At max load, that gun requires 24 CFM for best performance. That CFM can be accomplished with a 3/8" hose and 1/4" fittings. The gun itself has a 1/4" inlet. So as long as your air compressor can put out the required CFM you should be good.
Dang man I like your Hot Ones channel better
What does it mean if little sprays of water comes out
The very act of creating compressed air with an air compressor results in condensation/water build up. That is why almost all air compressor tanks will have a drain valve on the bottom of the tank. Most comercial set ups will have an auto drain added to the bottom of the compressor to remove this moisture from the lines. In addition, they may also utilize an FRL (Filter, Regulator, Lubricator) system. The filters are usually designed to minimize the amount of moisture that makes it to the end of your line. As a starting point, make sure to drain your tank. After that, depending on your setup, you may want to consider seting up an FRL system with an auto drain. If you want to have a look at the FRL's we have available they can be found in our online catalogue on page I19 to I23. www.greggdistributors.ca/catalogue.php. Hope that helps.
how do I get a catalog?
You can view and download the digital version of our Gregg's catalogue on our website > greggdistributors.ca/online-catalogue & if you are located in Western Canada, you can request a copy from one of our 24 locations.
Why was I told nitto fitting has better air flow than M style fitting when it's not?
Now I understand why all air hose specialists have a PhD *(Pneumatic hose Diploma)* from the _University of Air Force._
YUP 11:00 mark, cut that bad boy off, and start over.
Was I wrong to think just cram any plug you have in there and see what works?
Love Canadian Men. Loathe Your Women you got for President.
Wish there was a Greggs everywhere. Yea Yea, I know you can get stuff cheaper Blah Blah Blah. But time is money. Getting the right part that fits what you need sure as hell saves you way more in the long run. Thanks Gregg!
Listen, if you are here like I am, it means you are not an expert. In other words, you are running an air compressor in your home garage and not some huge industrial application. Given that you and I are probably similar people, I will use my numbers to make this point:
My compressor puts out 5 CFM at 90 PSI. The lowest CFM number he just gave for a coupler is 34 CFM. Ig the most you can produce is 5...then couplers that handle 34 will be 29 CFM over sufficient for what you are doing, and 40CFM won't produce anything extra for you.
The connectors I found today are type M. The plugs I found are type D. I actually came here hoping to validate my purchases, by making sure those two types were compatible. I watched this video just like you did, and just learned that the difference is 34 to 40 CFM, one to the other...for my 5 CFM compressor.
I'm set.
Where i can find the catalog in 8:00 .
👏
Hello, Please find check out our catalogue here greggdistributors.ca//search?q=I9&page_size=8&view=list&terms=CatPage:I9
my compressor only puts out 10 cfm @ 90 psi, does that mean the smallest coupler will be more than adequate?
That is what your pump can output at 90 psi. In other words, if your pump cuts in at 90 psi, it can provide 10 cfm at that pressure. Your tank can flow more than that. The CFM required to run the tool(s) you have connected will determine whether your tank pressure continues to drop, remains the same, or rises after the pump cuts in.
Nothing less than a 3/8 hose and I use 1/2 hose most of the time on trucks
B- on the info
Omg i thought we only have japan, EU and US type!
This should have been standardized a long time ago.