25x28x2 MERV 11 Pleated Air Filter 6PK - 24.5x28.5x1.75 - Actual Size Parts & Accessories O-Ring Replacement: American Plumber WBC-OR

O-Ring Replacement: American Plumber WBC-OR 151254

Lowest pressure drop

Compared to cheap fiberglass filters

Manufactured by CA Ware

25x28x2 MERV 11 Pleated Air Filter 6PK - 24.5x28.5x1.75 - Actual Size Parts & Accessories O-Ring Replacement: American Plumber WBC-OR25x28x2 MERV 11 Air Filter Box of 6 Actual Size of Filter: 24. 5x28. 5x1. 75 Air filters are ranked in a minimum efficiency rating value (MERV) system. The higher the MERV rating, the better the filter can filter out all airborne particulates. Since we are constantly trying to improve indoor air quality, it only makes sense that we would offer air conditioner filter MERV 11. 25x28x2 MERV 11 filters are right on the cusp of being classified as medium