18" x 24" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 17.75 X 23.75] 3-Pack Floor Grille Toe Space + Product Details Size –

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

Actual Filter Size – 7 3/4"w x 15 3/4" x 1"

75"H – fits a 14" X 4" duct opening

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 22" or 22" x 8" duct opening (measured at the opening)

actual front end outer dimensions are approximately 13" width X 13" height

18" x 24" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 17.75 X 23.75] 3-Pack Floor Grille Toe Space + Product Details Size –+ Product Details Size 18"w X 24"h pleated MERV 8 filter for HVAC return filter grille 3 Pack. Actual dimensions: 17. 75" X 23. 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