Merv 11 Pleated Air Filter - 13" x 21" x 1"Any 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.

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

PACK of 6 pads for Pad and Frame Air Filters

The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters

In general

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

oxidation and deterioration

Either way

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

and long service life which reduces HVAC equipment maintenance and energy costs

degrade and restrict air flow

the A+2000 uses stage loading

Unlike some permanent custom air filters