Merv 8 Pleated Air Filter - 21 1/2" x 24 1/4" x 1" Quantity:12-pack We look forward to delivering

We look forward to delivering our American-made

To find the size the old unit should have sizing information printed on it

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

from the air stream

Merv 8 Pleated Air Filter - 21 1/2" x 24 1/4" x 1" Quantity:12-pack We look forward to deliveringAny 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.