Merv 13 Pleated Air Filter - 20" x 21 5/8" x 1" Quantity:12-pack the "A+2000" brand Permanent Washable

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

Can be ordered in packages of 2 each only

In general

And there are no metal parts that could lead to corrosion or oxidation within the filter

Merv 13 Pleated Air Filter - 20" x 21 5/8" x 1" Quantity:12-pack the "A+2000" brand Permanent WashableAny 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.