Merv 13 Pleated Air Filter - 21 1/2" x 21 1/2" x 2" Quantity:12-pack allowing the grease to drain

allowing the grease to drain into through below

The filtering media consists of two layers of Stainless Steel roll formed baffles

This is designed to fit into 1" Return Air Grilles

Available in packs of 4

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

Merv 13 Pleated Air Filter - 21 1/2" x 21 1/2" x 2" Quantity:12-pack allowing the grease to drainAny 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.