{"product_id":"tdv-g2920915","title":"Backdraft Damper, Horizontal, 39-3\/4Sq","description":"39.75 In.H-W 4.5 In.L Aluminum Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter 40 in, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 39 3\/4 in, Rough Opening Diameter 40 in, Rough Opening Shape Square, Fits Fan Diameter 40 in, For Duct Shape Square, Free Area 10.2 sq ft, Overall Width 39 3\/4 in, Frame Material Thickness 20 ga, Overall Length 4 1\/2 in, Frame Depth 2 in, Rough Opening Length 40 in","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":45271019913351,"sku":"G2920915","price":181.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/5424\/4231\/files\/Z0369ufo5oy_80d7411b-e7da-44dd-889f-aa4645a6a248.jpg?v=1784333652","url":"https:\/\/checkout.towerdvbe.com\/products\/tdv-g2920915","provider":"Tower Sales and Consulting","version":"1.0","type":"link"}