12x24x4 MERV 13 Pleated Air Filter 3PK - 11.375x23.375x3.625 - Actual Size 20x22x1 9 psi at 2 gpm

9 psi at 2 gpm

12x12x1 MERV 13 filters are pleated

Length: 105cm (41

The large LCD display shows both pH and temperature readings simultaneously

16x25x4 MERV 11 filters are right on the cusp of being classified as “medium efficiency MERV pleated air filters” and “high-efficiency MERV pleated air filters

12x24x4 MERV 13 Pleated Air Filter 3PK - 11.375x23.375x3.625 - Actual Size 20x22x1 9 psi at 2 gpm12x24x4 MERV 13 Air Filter Box of 3 Actual Size of Filter: 11. 375 x 23. 375 x 3. 625 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 13. 12x24x4 MERV 13 filters are right on the cusp of being classified as