14x18x1 MERV 8 Pleated Air Filter 6PK - 13.5x17.5x.75 - Actual Size Specialty Filters Certified for All Brands Including

Certified for All Brands Including Whirlpool

18x25x2 MERV 13 Air Filter - Box of 6

part number 241798231

we know that some HVAC units are unable to use higher MERV rating filters

14x18x1 MERV 8 Pleated Air Filter 6PK - 13.5x17.5x.75 - Actual Size Specialty Filters Certified for All Brands Including14x18x1 MERV 8 Air Filter Box of 6 Actual Size of Filter: 13. 5x17. 5x. 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 8. 14x18x1 MERV 8 filters are right on the cusp of being classified as medium