Merv 8 Pleated Air Filter - 13" x 21" x 1" Quantity:12-pack than standard fiberglass filters purchased

than standard fiberglass filters purchased at retail outlets

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

28X Increased Efficiency

and long service life which reduces HVAC equipment maintenance and energy costs

Includes one Frame and PACK of 6 pads

Merv 8 Pleated Air Filter - 13" x 21" 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.