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 - 36"W X 6"H is (for duct opening measurement only)

and ceiling register grilles

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

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 32" OR 32" x 18" duct opening (measured at the opening)

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