16x20x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 15.75 x 19.75) - 3 Pack 14in diameter + Product Details Size -

+ Product Details Size - 32"w X 30"h X 2"d (for duct opening measurement only)

only measure the "hole"

Rule of Thumb: "HVAC" nominal tube sizing 1/8

+ Product Details Size – 28"w X 6"h is the size for the duct opening measurement only

16x20x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 15.75 x 19.75) - 3 Pack 14in diameter + Product Details Size -+ Product Details 16" x 20" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 15. 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