20x30x2 MERV 13 Pleated Air Filter 6PK - 19.75x29.75x1.75 - Actual Size 16x20x2 This is a simplified definition

This is a simplified definition as the measurement is affected by many things such as the type of ionic compound(s) dissolved in the water

Micron Rating (Nominal): 20 µm

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

Using coconut shells

1 bar @ 38 Lpm)

20x30x2 MERV 13 Pleated Air Filter 6PK - 19.75x29.75x1.75 - Actual Size 16x20x2 This is a simplified definition20x30x2 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