{"product_id":"dayton-3hgk4-square-fire-smoke-damper-17-3-4-in-w","title":"Dayton 3HGK4 - Square Fire\/Smoke Damper,17-3\/4 In. W","description":"\u003cp\u003e17.75 In.H 16 In.L 18 In.W GStl Fire\/Smke Dampr, For Nominal Duct Diameter Not Applicable, Damper Application Fire and Smoke, Number of Panels 1, Overall Height 17 3\/4 in, Overall Length 16 in, Rough Opening Shape Square, For Duct Shape Square, Overall Width 18 in, Frame Material Thickness 16 ga, Blade Material Galvanized Steel, Maximum Air Pressure 4 in wg, Overall Diameter Not Applicable, Rough Opening Width 18 in, Damper Type Dynamic, Maximum Air Velocity 2000 fpm, Nameplate Voltage 120V AC\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":43254413557854,"sku":"3HGK4","price":687.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Z0355wfo5oy_9cc89ebb-bdef-4e9f-8512-a19c873d4a0c.jpg?v=1788392873","url":"https:\/\/nationalboilersupply.com\/products\/dayton-3hgk4-square-fire-smoke-damper-17-3-4-in-w","provider":"National Boiler Supply","version":"1.0","type":"link"}