Yonderfume 2 Pack Square Magnetic Vent Covers 12" x 12" Fit Steel Vent Only — Open-Box, 5% Off

Strong Magnetic Covers for Steel Vents: These 12 × 12 inch magnetic vent covers are made from thick, high-strength rubber magnet material that firmly adheres to steel floor, wall, and ceiling vents. The full-surface magnetic backing creates a tight seal that stays in place — no adhesives or tools required. Important: Works only on bare steel vents. Will NOT stick to painted steel, aluminum, plastic, or brass vents. Test with a refrigerator magnet before purchasing — if it doesn't stick, these covers won't either. Save Energy & Reduce Utility Bills: Block airflow to unused rooms and reduce heating and cooling waste. By covering vents in spare bedrooms, storage areas, or seasonal spaces, you direct conditioned air where you need it most — potentially lowering your energy bills. The magnetic seal also reduces noise transmitted through ductwork and stops cold drafts from floor vents in winter. A simple, cost-effective way to improve home energy efficiency. Fits 12 × 12 Inch Vents & Cut to Size: Each cover measures 12 × 12 inches (304 × 304 mm) and fits most standard square vent registers. The rubber magnet material can be easily cut with scissors or a utility knife to fit smaller vents, custom sizes, or unusual shapes — simply trim to your needed dimensions. Ideal for floor, wall, and ceiling vents in homes, apartments, RVs, campers, and office spaces. Durable & Easy to Maintain: The smooth white surface wipes clean with a damp cloth — no special cleaning needed. The flexible rubber magnet construction resists cracking, fading, and wear from regular use. Low-profile design sits nearly flush with your vent, blending in with most décor. When not in use, simply stack for compact storage. Each pack includes 2 covers for multiple rooms or backup. What You Get: Each package includes 2packs 12 × 12 inch magnetic vent covers (white). Perfect for homeowners, renters, RV owners, and anyone looking to control airflow and save energy. Please measure your vent and verify it is bare steel before ordering. Magnetic vent covers offer a simple, tool-free way to control airflow in your home and potentially reduce heating and cooling costs. Just place one over a steel vent register in an unused room, and the strong magnetic backing creates a seal that blocks conditioned air from going to waste.How they work: The full-surface rubber magnet adheres directly to bare steel vent grilles, creating an air-blocking seal without any tape, adhesive, or tools. When you need airflow in that room again, simply peel off the cover and set it aside. The low-profile white design blends in with most home décor.Important compatibility note: These covers work ONLY on bare steel vents. They will NOT stick to:- Painted steel vents (paint creates a non-magnetic barrier)- Aluminum vents- Plastic vents- Brass vents- Curved-blade ventsBefore purchasing, test your vent with a simple refrigerator magnet. If the magnet sticks firmly, these covers will work. If it doesn't stick, your vent is made of a non-magnetic material and these covers will not adhere.Energy saving tip: For best results, use covers on vents in rooms you don't frequently use — spare bedrooms, storage rooms, seasonal spaces — and remove them when the room is in use. This directs your HVAC system's output where you need it, potentially reducing energy waste and lowering utility bills. Specifications:Material: rubberColor: whiteShape: squareInstallation method:surface-mountedSize(about): 304x304x1.5mm/11.97x11.97x0.06inch(LxWxT) Package Included:2pcs x magnetic floor register covers