18" x 24" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 17.75 X 23.75] 3-Pack w25h25 + Product Details Size –

+ Product Details Size – 12" x 20" or 20" x 12" is the size for the duct opening measurement only

+ Product Details Size – 14"w X 30"h is the size for the duct opening measurement only

Actual Filter Size – 19 3/4"w x 13 3/4" x 1"

Lubrication: If applicable

with actual outer dimensions of 24

18" x 24" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 17.75 X 23.75] 3-Pack w25h25 + 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