{"product_id":"damper-vert-horiz-mtg-17-3-4-sq","title":"Damper Vert\/Horiz Mtg 17 3\/4 Sq","description":"\u003cp\u003e17.75 In.H-W 4.5 In.L Alu Univ Backdraft Dampr Damper Application Backdraft For Nominal Duct Diameter 18 in Frame Material Galvanized Steel Number of Panels 1 Maximum Air Velocity 2000 fpm Overall Height 17 3\/4 in Rough Opening Diameter 18 in Rough Opening Shape Square Fits Fan Diameter 18 in For Duct Shape Square Free Area 2.2 sq ft Overall Width 17 3\/4 in Frame Material Thickness 20 ga Overall Length 4 1\/2 in Frame Depth 2 in Rough Opening Length 18 in Maximum Pressure 1 in wc\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":40939050336340,"sku":"75O95A","price":75.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/3316\/7700\/files\/2FTX4_AS01.jpg?v=1743464659","url":"https:\/\/jahnda.com\/products\/damper-vert-horiz-mtg-17-3-4-sq","provider":"The Jahnda Group - Your Government Supply Provider","version":"1.0","type":"link"}