14x22x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 13.75 x 21.75) - 3 Pack Oval to Round 90-Degree Boot 73% free area for optimal

73% free area for optimal performance

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+ Product Details 16" x 20" x 1" replacement air filters for your furnace

Measure the size of the air drywall opening

14x22x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 13.75 x 21.75) - 3 Pack Oval to Round 90-Degree Boot 73% free area for optimal+ Product Details 14" x 22" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 13. 75" x 21. 75") A unique combination of cotton & synthetic fibers gives you the most filtration and the least air resistance equals great air & easy airflow for your system. The non pleated design provides low airflow resistance while still effectively capturing dirt and particles such as standing dust, spray paint