25x20x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 24.75 x 19.75) - 3 Pack Rectangular Duct Caps + Product Details Size –

+ Product Details Size – 20"w X 34"h is the size for the duct opening measurement only

+ Product Details Size - 28"w X 16"h X 2"d (for duct opening measurement only)

+ Product Details Size – The size of 8" straight saddle stick on take-off is 12"/14" and it is compatible with duct 8"

back blades made of black plastic for reduced air noise and discreet appearance

+ Product Details Size - 36"W X 6"H is (for duct opening measurement only)

25x20x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 24.75 x 19.75) - 3 Pack Rectangular Duct Caps + Product Details Size –+ Product Details 25" x 20" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 24. 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