30" x 10" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 29.75 X 9.75] 3-Pack return grille If your filter opening is

If your filter opening is 14" wide by 20" long

Check the electrical and plumbing connections to ensure they remain secure

Strongest Magnets – Our anisotropic magnetic vent covers provide the strongest magnetization and seal to your register grilles

9% Pure Copper meeting ASTM B280 standards

30" x 10" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 29.75 X 9.75] 3-Pack return grille If your filter opening is+ Product Details Size 30"w X 10"h pleated MERV 8 filter for HVAC return filter grille 3 Pack. Actual dimensions: 29. 75" X 9. 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