Merv 11 Pleated Air Filter - 7 3/4" x 31 5/8" x 1" Quantity:12-pack Unlike some permanent custom air

Unlike some permanent custom air filters

In general

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

28X Increased Efficiency

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Merv 11 Pleated Air Filter - 7 3/4" x 31 5/8" x 1" Quantity:12-pack Unlike some permanent custom airAny 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.