18x24x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 23.75) - 3 Pack Mounting Bracket + Product Details Size &

+ Product Details Size & Compatibility – The size of the side round ceiling box is 12" X 12" X 10" and it is compatible with duct 10"

our Rectangular Duct Cap provides a secure and tight fit

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compatible with duct 3"

18x24x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 23.75) - 3 Pack Mounting Bracket + Product Details Size &+ Product Details 18" x 24" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17. 75" x 23. 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