Merv 11 Pleated Air Filter - 13" x 15 1/8" x 2" Quantity:12-pack and the greater the pressure

and the greater the pressure drop it creates

compact electronic power supply

the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

UL/ULC listed

Merv 11 Pleated Air Filter - 13" x 15 1/8" x 2" Quantity:12-pack and the greater the pressureAny 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.