20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 13 Plus Carbon 2 Pack 9 CFM (1) Aerating Water Pump

(1) Aerating Water Pump

• Coco coir and perlite based

MERV 8 furnace air condition filters are comparable to HVAC filters with the rating of MPR 800

Worm castings contain growth hormones that promote bigger and more fibrous plant roots

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 13 Plus Carbon 2 Pack 9 CFM (1) Aerating Water PumpImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,