16x20x4 (3 5/8) Pleated MERV 12 Air Filters 6 Pack lighting_accessories but its thinner walls allow

but its thinner walls allow heat to transfer out and away from the roots more rapidly

inner diameter hose size

Black Vinyl Tubing - (ID) 3/4" - (OD) 1" - 25 ft

Benefits of E

Chlorine & Chloramine Reduction: Up to 99%

16x20x4 (3 5/8) Pleated MERV 12 Air Filters 6 Pack lighting_accessories but its thinner walls allowImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. If you are replacing a 4 3 8 depth 16x20x4 filter