18" x 24" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 17.75 X 23.75] 3-Pack Outdoor Vent Covers 360-Degree Airflow: Experience optimal air

360-Degree Airflow: Experience optimal air circulation like never before

ensuring consistent temperature control

actual front end outer dimensions are approximately 9

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

+ Product Details Size – 28" x 36" or 36" x 28" is the size for the duct opening measurement only

18" x 24" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 17.75 X 23.75] 3-Pack Outdoor Vent Covers 360-Degree Airflow: Experience optimal air+ 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