Merv 13 Pleated Air Filter - 23" x 23" x 1" Quantity:12-pack åÊWe look forward to delivering

åÊWe look forward to delivering our American-made

28X Increased Efficiency

if not you can measure it or check the HVAC unit and the owner‰۪s manual

Available in packs of 4

Eliminates Filter Bypass

Merv 13 Pleated Air Filter - 23" x 23" x 1" Quantity:12-pack åÊWe 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.