12" x 24" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 11.75 X 23.75] 3-Pack Aluminum Adjustable Curved Blade + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 6" OR 6" x 30" duct opening (measured at the opening)

+ Product Details Size - 28"w X 18"h is the size for the duct opening measurement only

Sound Rated – Felt covered access panel door with soundproof material on the inside reduces noise with a reduction index of 30 – Enjoy having an access door without sacrificing peace and quiet

Installation requires cutting into the frame of your wall and the metal duct where your HVAC system is located

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

12" x 24" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 11.75 X 23.75] 3-Pack Aluminum Adjustable Curved Blade + Product Details Perfect Fit+ Product Details Size 12"w X 24"h pleated MERV 8 filter for HVAC return filter grille 3 Pack. Actual dimensions: 11. 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