20x22x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 21.75) - 3 Pack Color_White The round side is crimped

The round side is crimped for easy insertion

+ Product Details Size – 12"w X 20"h is the size for the duct opening measurement only

Actual Filter Size – 23 3/4"w x 13 3/4" x 1"

+ Product Details Size – The size of 8" straight saddle stick on take-off is 10"/12" and it is compatible with duct 8"

With a 10-inch size

20x22x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 21.75) - 3 Pack Color_White The round side is crimped+ Product Details 20" x 22" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19. 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