Merv 13 Pleated Air Filter - 20" x 30" x 1" Quantity:4-pack To find the size the

To find the size the old unit should have sizing information printed on it

This design enables A+2000 custom air filters to maintain performance over the years

To order washable electrostatic custom air filters you just need to know the size of the current air filter

Can be ordered in packages of 2 each only

You may know them as washable air or even permanent air filters

Merv 13 Pleated Air Filter - 20" x 30" x 1" Quantity:4-pack To find the size theAny Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop, and long service life which reduces HVAC equipment maintenance and energy costs. A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter.