{"product_id":"dayton-3hgj9-square-fire-smoke-damper-7-3-4-in-w","title":"Dayton 3HGJ9 - Square Fire\/Smoke Damper,7-3\/4 In. W","description":"\u003cp\u003e7.75 In.H 21 In.L 8 In.W GalvStl Fire\/Smke Dampr, For Nominal Duct Diameter Not Applicable, Damper Application Fire and Smoke, Number of Panels 1, Overall Height 7 3\/4 in, Overall Length 21 in, Rough Opening Shape Square, For Duct Shape Square, Overall Width 8 in, Frame Material Thickness 16 ga, Blade Material Galvanized Steel, Maximum Air Pressure 4 in wg, Overall Diameter Not Applicable, Rough Opening Width 8 in, Damper Type Dynamic, Maximum Air Velocity 2000 fpm, Nameplate Voltage 120V AC\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":43254816112734,"sku":"3HGJ9","price":676.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Z0355wfo5oy_ee1fc794-febb-463f-bbaf-d4794f92e2bb.jpg?v=1788396879","url":"https:\/\/nationalboilersupply.com\/products\/dayton-3hgj9-square-fire-smoke-damper-7-3-4-in-w","provider":"National Boiler Supply","version":"1.0","type":"link"}