Merv 11 Pleated Air Filter - 13 1/2" x 19 1/4" x 1" Quantity:12-pack the A+2000 uses no foam

the A+2000 uses no foam that may clog

This is designed to fit into 1" Return Air Grilles

PACK of 6 pads for Pad and Frame Air Filters

One way to overcome this problem is to increase the surface area of the filter media

Because we specialize in custom air filters

Merv 11 Pleated Air Filter - 13 1/2" x 19 1/4" x 1" Quantity:12-pack the A+2000 uses no foamAny 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.