20x30x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 29.75) - 3 Pack d Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 24" X 6" duct openings

+ Product Details Size – 4"h X 14"h is the size for the duct opening measurement only

Best alloy to fill gaps when close fit-ups cannot be made - highest joint ductility and strength in HVAC-R applications

+ Product Details Size - 24"w X 20"h X 2"d (for duct opening measurement only)

20x30x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 19.75 x 29.75) - 3 Pack d Ideal for Walls & Ceilings:+ Product Details 20" x 30" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19. 75" x 29. 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