20x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filter 1 Pack commercial-lighting-fixture Here’s a convenient three-pack: Big

Here’s a convenient three-pack: Big Bloom

*Bracket sold separately - recommended model PCWMTA24-B

Modular Trays

Cool-running capacitors are the key to long ballast life and continued high light output

#4 Perlite (1/3" - 3/4" granules)

20x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filter 1 Pack commercial-lighting-fixture Here’s a convenient three-pack: BigImportant 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 20x20x4 filter