20x30x2 MERV 13 Pleated Air Filter 6PK - 19.75x29.75x1.75 - Actual Size 16x20x2 20x24x1 MERV 11 filters are

20x24x1 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

Using coconut shells

Flow Rate (gpm) Maximum: 1

AP 110 can withstand extreme pressure drops and stresses such as water hammer

20x30x2 MERV 13 Pleated Air Filter 6PK - 19.75x29.75x1.75 - Actual Size 16x20x2 20x24x1 MERV 11 filters are20x30x2 MERV 13 Air Filter Box of 6 Actual Size of Filter: 19 1 2 x 29 1 2 x 1 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. 16x24x2 MERV 13 filters are right on the cusp of being classified as medium