Magnetic Vent Covers 4 PCS - HVAC Premium Anisotropic 1.5mm Optimal Thickness - 15.5" X 8" - for Wall, Floor, Ceiling Vent Covers - Trap & Seal Air 7in diameter durable white powder coat finish

durable white powder coat finish for an attractive look & moisture resistant to prevent mold & mildew buildup in indoor or outdoor spaces

Actual Filter Size – 21 3/4"w x 35 3/4" x 1"

and flooding

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

Magnetic Vent Covers 4 PCS - HVAC Premium Anisotropic 1.5mm Optimal Thickness - 15.5" X 8" - for Wall, Floor, Ceiling Vent Covers - Trap & Seal Air 7in diameter durable white powder coat finish+ Product Details Cut into any shape & size With an original dimension of 15. 5" X 8" inch, you can cut or trim your vent cover to more precisely fit your air vent. Strongest Magnets Our anisotropic magnetic vent covers provide the strongest magnetization and seal to your register grilles, vents or diffusers and can even be installed on ceiling vents unlike most magnetic vent covers in the market today. Thickest Vent Covers Our magnetic vent covers