12x24x4 MERV 13 Pleated Air Filter 3PK - 11.375x23.375x3.625 - Actual Size 20x22x1 Materials:

Materials:

000 gallons filtration

Actual Size of Filter:15

The large LCD display shows both pH and temperature readings simultaneously

Swimming Pools & Spas

12x24x4 MERV 13 Pleated Air Filter 3PK - 11.375x23.375x3.625 - Actual Size 20x22x1 Materials:12x24x4 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