20x20x1MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 19.75) - 3 Pack Width_24in + Product Details Size -

+ Product Details Size - 6"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 8"w X 26"h X 2"d (for duct opening measurement only)

+ Product Details Size - 28"w X 28"h is the size for the duct opening measurement only

+ Product Details Size - 16"w X 22"h X 2"d (for duct opening measurement only)

20x20x1MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 19.75) - 3 Pack Width_24in + Product Details Size -+ Product Details 20" x 20" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19. 75" x 19. 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