22x22x1 MERV 11 Pleated Air Filter 6PK - 21.5x21.5x.75 - Actual Size 12x24x4 We are very proud that

We are very proud that we offer these great 18x20x2 MERV 11 filters now for homes

Operating Pressure: 30 - 120 psi

filter cartridge should be replaced every six months* or 170 gallons *Replace sooner if flow rate noticeably declines

Highly effective in filtering certain VOC's

Maximum Dimensions: 4 5/8" x 20" (118 mm x 508 mm)

22x22x1 MERV 11 Pleated Air Filter 6PK - 21.5x21.5x.75 - Actual Size 12x24x4 We are very proud that22x22x1 MERV 11 Air Filter Box of 6 Actual Size of Filter: 21. 5x21. 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 11. 22x22x1 MERV 11 filters are right on the cusp of being classified as medium