ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
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I like your 2 filter design. A little more work but the extra filter gives you more air flow and is less expensive than the 4 filter designs. I'm going to give a single 4" MERV 13 filter a try because I'm just that lazy.
I like your 2 filter design. A little more work but the extra filter gives you more air flow and is less expensive than the 4 filter designs. I'm going to give a single 4" MERV 13 filter a try because I'm just that lazy.