22" x 12" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 21.75 X 11.75] 3-Pack Grey Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 12" X 10" duct openings

The 1/2" black insulation

Designed for both walls and ceilings

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 22" OR 22" x 24" duct opening (measured at the opening)

22" x 12" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 21.75 X 11.75] 3-Pack Grey Ideal for Walls & Ceilings:+ Product Details Size 22"w X 12"h pleated MERV 8 filter for HVAC return filter grille 3 Pack. Actual dimensions: 21. 75" X 11. 75" High Quality A uniquie combination of cotton & synthetic fibers gives you the most filtration and the least air resistance equals great air & easy airflow for your system Design The "W" shaped pleats give you more filter surface thereby capturing more dust. Our metal and paper diagonal support bars ensure the filter can