Magnetic Vent Covers, Extra Strong Magnets, 8" X 12" (4 Pack) Ultra Thick 60mil, Complete Seal, Air Vent Covers for Home Floor, Ceiling, Wall

IMPORTANT! - For STEEL Vents Only: Not suitable for use with aluminum or plastic vents. Please test with a small magnet before ordering IMPORTANT! - Cover Size: 8" x 12", 60 mil (1.5 mm) thickness, rounded corners. Please measure your vent face before ordering. For other sizes, refer to listing image 6 for SIZE CHART details. Can be trimmed to your desired size easily Extra Magnetic Strength: Crafted from premium materials, our covers provide a surface magnetic strength of up to 650 Gauss, ensuring a complete seal with no slipping - setting us apart from competitors Airflow Control: Effectively blocks hot or cool airflow in unoccupied rooms, enhancing comfort while directing air where it's needed Versatile Use: Ideal for home, HVAC, AC, RV, and heater vents. Perfect for basements, furnace vents, and reducing noise in apartment buildings

Manufacturer: ‎Seatern Part Number: ‎SWTH-MVC01-8X12-WR2 Item Weight: ‎3 pounds Product Dimensions: ‎12 x 8 x 0.06 inches Item model number: ‎SWTH-MVC01-8X12-WR2 Size: ‎8" x 12"-4Pack Color: ‎White Material: ‎Rubber Shape: ‎Rectangle Thickness: ‎0.06 Inches Installation Method: ‎Surface-Mounted Item Package Quantity: ‎1 Batteries Included?: ‎No Batteries Required?: ‎No ASIN: B0CR3Y6J3G Customer Reviews: 4.7 out of 5 stars Date First Available: January 1, 2024