{"product_id":"p-1859339","title":"1-5\/8 Inch OD Duct Backdraft Damper Manual Volume Damper for Vents Fans","description":"The 304 stainless steel air valve can accurately control the air flow rate and flow direction to ensure stable and efficient operation of the ventilation system. Whether it is a factory workshop, a commercial building, or residential fresh air system, it is necessary for its control over the circulation of the air.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecification  \u003c\/strong\u003e\u003cbr\u003eColor: Silver\u003cbr\u003eMaterial: 304 Stainless Steel\u003cbr\u003eOuter Diameter: 42 mm \/ 1.7 inch\u003cbr\u003eInner Diameter: 40 mm \/ 1.6 inch\u003cbr\u003eThickness: 1 mm \/ 0.04 inch\u003cbr\u003eLength: 100 mm \/ 3.94 inch\u003cbr\u003ePacking List: 1Pcs Duct Backdraft Damper\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAdvantage\u003c\/strong\u003e\u003cbr\u003eMATERIAL: The main body is made of 304 stainless steel, which boasts excellent anti-rust and corrosion resistance. The duct damper can effectively withstand moisture, acid, alkali and other corrosive factors, adapting to various complex environments.\u003cbr\u003eFLEXIBLE OPERATION: Manual operation method, by rotating the handwheel or handle, the air volume can be flexibly controlled, without the need for complex electronic control equipment, making the duct damper convenient for staff to make quick adjustments.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eInstruction\u003c\/strong\u003e\u003cbr\u003e1. Easy to install: Simply slide it directly into your ventilation pipe, and then use the pipe clamp and tape(not included) for a secure fit.In addition, you can weld the damper directly to metal ventilation pipes.\u003cbr\u003e2.Position the air duct valve on accessible place and reserve sufficient maintenance space,turn the handle to adjust the air flow based on your requirement.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eNote\u003c\/strong\u003e\u003cbr\u003ePlease check the size carefully before ordering.","brand":"Harfington","offers":[{"title":"Default Title","offer_id":48709198283001,"sku":"a25040700ux2306","price":26.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/2477\/6095\/files\/ux_a25040700ux2306_ux_g03.jpg?v=1784921385","url":"https:\/\/www.harfington.com\/en-ca\/products\/p-1859339","provider":"Harfington","version":"1.0","type":"link"}