Magnetic Vent Cover 5.5×12" – Flexible Floor & Ceiling Register

Seal Any Air Vent Instantly with Strong Magnetic Attraction

Take control of your home's airflow with this Magnetic Vent Cover — a flexible, cuttable magnet sheet designed to fit securely over standard floor, wall, and ceiling air registers. Whether you're redirecting airflow from unused rooms or simply reducing energy waste, this easy-to-use vent cover delivers a firm, reliable seal without tools or adhesives.

Made in Mainland China.

Key Features

• High-Strength Anisotropic Magnet: Provides superior magnetization for a secure seal on any metal grille, vent, or diffuser — including ceiling-mounted vents that most magnetic covers can't handle.
• 1.5mm Thick for a Proper Seal: Thicker than standard magnetic vent covers, ensuring an effective barrier against airflow while remaining lightweight and unobtrusive.
• PVC Coated (0.1mm): The eco-friendly PVC coating protects against moisture and wear, making it suitable for floors, side walls, and ceilings in homes, offices, RVs, boats, and anywhere with an HVAC system.
• Cut to Any Shape or Size: Starts at 5.5 × 12 inches (15 × 30 cm) — simply trim with scissors for a precise, custom fit on your specific register.
• Wide Temperature Range: Rated for -4°F to 230°F, making it reliable year-round in both heating and cooling seasons.
• Save on Energy Bills: Blocking off unused vents prevents conditioned air from being wasted in empty rooms, helping your HVAC system run more efficiently.
• No Battery or Wiring Required: Purely magnetic — install and remove in seconds with zero mess.

Specifications

• Size: 5.5 × 12 inches (15 × 30 cm)
• Thickness: 1.5mm magnetic sheet + 0.1mm PVC coating
• Material: Eco-friendly back-adhesive anisotropic magnet with PVC surface
• Temperature Range: -4°F to 230°F (-20°C to 110°C)
• Compatible With: Metal floor registers, wall vents, ceiling diffusers, HVAC grilles
• Package Contents: 1 × Magnetic Vent Cover
• Origin: Made in Mainland China

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Why Manage Your Home's Airflow?

According to the U.S. Department of Energy, heating and cooling account for nearly half of a home's energy use. Sealing or redirecting airflow from unused spaces is one of the simplest ways to improve HVAC efficiency and reduce utility costs.

Learn more: Grille (car)

Frequently Asked Questions

Q: Will this magnetic vent cover work on ceiling vents?

A: Yes! The anisotropic magnet provides strong enough attraction to hold the vent cover in place on ceiling registers as well as floor and wall vents, as long as the grille surface contains metal (as most standard HVAC registers do).

Q: Can I cut the magnetic vent cover to fit a smaller register?

A: Absolutely. The cover measures 5.5 × 12 inches and can be easily trimmed with standard scissors to fit smaller or oddly shaped vents precisely — no special tools needed.

Q: Is this vent cover safe to use year-round?

A: Yes. The magnetic vent cover is rated for temperatures from -4°F to 230°F, making it suitable for use through all seasons, whether your HVAC system is running heat or air conditioning.

Q: How do I remove or reposition the magnetic vent cover?

A: Simply peel it off — no adhesive residue is left behind. The magnetic attachment means you can remove, reposition, or store the cover whenever you like without any damage to your register or flooring.