22" x 12" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 21.75 X 11.75] 3-Pack Powder Coated + Product Details Size -

+ Product Details Size - 4"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 38 5/8" width X 20 5/8" height -

With these options

+ Product Details Size – 10"w X 4"h is the size for the duct opening measurement only

22" x 12" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 21.75 X 11.75] 3-Pack Powder Coated + Product Details Size -+ 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