20x25x5 (4 3/8) Lennox X6673_X6675 Replacement  MERV 12 Pleated Plus Carbon 1 Pack vacuum pump while increasing the structural integrity

while increasing the structural integrity of the new proprietary lid and reservoir

and waterproof inner zippers to protect your contents

- 40'' filter bed

Vendor: ARBICO Organics

an integrated back draft damper and a mounting bracket designed for quick and easy installation

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement  MERV 12 Pleated Plus Carbon 1 Pack vacuum pump while increasing the structural integrityImportant 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,