Magnetic Vent Extender for Under Furniture with 5 Secured Neodymium Magnets, Air Vent Deflector for Metal Floor Register 10" and 12" Wide, Vent Redirector Extends from 17"-33" (1 Pack) — Open-Box, 14% Off

Trapezoid Design for Even Airflow：Our vent extender features a trapezoid shape that smoothly and evenly distributes airflow under sofas, beds, low cabinets, and TV stands. This unique design creates balanced, uninterrupted air circulation, helping you turn every room into a cozy retreat

Neodymium Magnets + 3M Adhesive Strips：Designed specifically for metal floor vents, this magnetic vent cover comes with strong neodymium magnets on the bottom that instantly grip metal registers. For extra holding power, we include industrial‑grade 3M adhesive strips to create a non‑slip bond. Even when the furnace is running at full blast, the extender won’t slide, rattle, or shift

Adjustable Length：This under‑furniture vent extender works with standard 10" and 12" metal floor registers. The length easily adjusts from 17" up to 33", fitting everything from a narrow hallway vent to a wide living room register. No tools, no complicated setup — just slide it to the desired length and place it over your vent

Durable & Flexible：Crafted from 1.5 mm thick premium material, this vent cover offers the perfect balance of durability and flexibility. It withstands high temperatures without warping or deforming, delivering efficient, long‑lasting performance season after season

Versatile Use：This floor vent deflector is ideal for use under sofas, beds, desks, and window seats, as well as in dining rooms, playrooms, closets, hallways, or home offices. By directing airflow exactly where it’s needed most, this floor vent extender helps your HVAC system run more efficiently — lowering your heating and cooling costs while keeping every room comfortably conditioned

This extender is specifically designed for standard 10" and 12"h floor registers, with an adjustable length from 17 inches up to 33 inches — fitting everything from narrow hallways to spacious living rooms. At just 1.25 inches high, it slides easily under sofas, beds, dressers, desks, chairs, and low cabinets. Made from 1.5 mm thick PET material, this vent extender has been heat‑tested to resist warping, cracking, or losing its shape — it’s flexible yet durable. The bottom of this magnetic vent cover features 5 powerful neodymium magnets that hold firmly onto any metal register, so even with the furnace or AC running at full blast, it won’t slide or rattle. It works perfectly under living room sofas and coffee tables, bedroom beds and dressers, home office desks and filing cabinets, dining room buffets and chairs, as well as in basements, playrooms, hallways, or closets — anywhere you have floor vents. Installation is simple: just adjust the extender to match your vent opening (17″–33″), place it directly on the metal floor register, and the magnets lock it in place. No screws, no tape (unless your vent is non‑metal — in that case, use double‑sided tape).