{"product_id":"4-inch-backdraft-damper-duct-2-pack-one-way-airflo","title":"4 Inch Backdraft Damper Duct 2 Pack One Way Airflow Insert For Ducting In Range Hoods Bathrooms Fans And Kitchen Fans Heavy Duty Galvanized Steel With Stainless Steel Axis And Spring Easy Install","description":"\u003cdiv\u003e4 Inch Backdraft Damper Duct Set, 2 Pack in Galvanized Steel\u003cbr\u003e\n✔️ 100 mm (4 in) dia, 88 mm (3.5 in) length, 0.5 mm thick, 2-pack \u003cp\u003eThe 4 inch backdraft damper is a heavy-duty duct insert designed to stop backflow in exhaust lines, range hoods, bathrooms, and other ventilation runs. It uses a galvanized steel shell with a stainless steel axis and spring for durability and reliable operation.\u003c\/p\u003e ✅ Diameter 100 mm (4 in), length 88 mm (3.5 in), thickness 0.5 mm (0.02 in) \u003cbr\u003e\n✅ Body: galvanized steel; axis and spring: stainless steel \u003cbr\u003e\n✅ Pack of 2 units for multiple ducts \u003cbr\u003e\n✅ Easy installation: insert into duct until it stops; ensure spring is horizontal for proper operation \u003cbr\u003e\n✅ One-way airflow design: dampers open only toward exhaust direction \u003cbr\u003e \u003cp\u003e💡 What is a backdraft damper for ducts and how does it help ventilation?\u003c\/p\u003e\n\u003cp\u003eThis handy device keeps air moving in one direction and stops backflow that can bring fumes into living spaces.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eprevents backflow of stale air and odors in ductwork\u003c\/li\u003e\n\u003cli\u003eimproves indoor air quality in homes and workshops\u003c\/li\u003e\n\u003cli\u003eworks with standard round ducts like 100 mm \/ 4 inch\u003c\/li\u003e\n\u003cli\u003edurable galvanized shell with stainless steel spring for longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Bearings Canada","offers":[{"title":"Default Title","offer_id":52510938562879,"sku":"VXB093KJ34Q8","price":76.13,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/4750\/8031\/files\/backdraft-damper-duct-4-inch-steel_1.jpg?v=1776665746","url":"https:\/\/bearingscanada.com\/products\/4-inch-backdraft-damper-duct-2-pack-one-way-airflo","provider":"Bearings Canada","version":"1.0","type":"link"}