{"product_id":"upgraded-4-inch-duct-damper-backdraft-damper-one-w","title":"Upgraded 4 Inch Duct Damper Backdraft Damper One Way Airflow Backflow Preventer For Dryer Vent Hose 2 Pack With Thick 0.6mm Flaps For Strong Seal Easy Install And Quiet Operation","description":"\u003cdiv\u003ePremium 4-Inch Backdraft Damper for Dryer Vents, 2-Pack\u003cbr\u003e\n✔️ 2-pack, 4 inch dampers with 0.6mm thick flaps for strong seal \u003cp\u003eThis upgraded backdraft damper fits standard 4 inch ducts and is built to prevent backflow in dryer vents, range hoods, bathrooms, and kitchen exhausts. It combines solid galvanized steel flaps with a lightweight aluminum axis for durable, quiet operation.\u003c\/p\u003e \u003cp\u003e✅ 4 inch (102 mm) damper diameter for standard ducts \u003cbr\u003e\n✅ Galvanized steel flap leaves with 0.6 mm thickness for strong seal \u003cbr\u003e\n✅ Aluminum axis and carbon steel springs for reliable action \u003cbr\u003e\n✅ Includes 2 dampers in a pack for convenient setup \u003cbr\u003e\n✅ Rubber seal around the perimeter ensures quiet closing \u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a backdraft damper used for in duct ventilation systems? A handy device to control airflow and seal off reverse flow in vents. - Helps prevent reverse air flow in dryer vents, range hoods, and bathroom fans.\n- Improves energy efficiency by keeping conditioned air in place.\n- Durable design with galvanized steel flaps, 0.6 mm thick, aluminum axis and carbon steel springs.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48207152972011,"sku":"VXB0DDQGDDXY","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61koTtnpDuL.jpg?v=1778813183","url":"https:\/\/vxb.com\/products\/upgraded-4-inch-duct-damper-backdraft-damper-one-w","provider":"VXB Bearings","version":"1.0","type":"link"}