20x25x4 (3 5/8) Pleated MERV 7 Air Filters 6 Pack Aeromixer Perlite: maintains air space for

Perlite: maintains air space for optimum root growth

PHOTOBIO•V is available in 100V through 277V configurations

Adds size and weight to flowering plants

Double-sided tape around wrists helps keeps gloves in place during donning

Pallet of 100 Cases (1000/Case)

20x25x4 (3 5/8) Pleated MERV 7 Air Filters 6 Pack Aeromixer Perlite: maintains air space forImportant 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 20x25x4 filter