Merv 11 Pleated Air Filter - 20" x 25" x 1" Quantity:12-pack than standard fiberglass filters purchased

than standard fiberglass filters purchased at retail outlets

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

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

from the air stream

Filtering inserts are shipped in an easily stored packet

Merv 11 Pleated Air Filter - 20" x 25" x 1" Quantity:12-pack than standard fiberglass filters purchasedAny 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.