{"product_id":"fan-shutter-18-in-mill-finish-aluminum","title":"Fan Shutter 18 In Mill Finish Aluminum","description":"\u003cp\u003e21 In.H-W 6 In.L Aluminum Wall Backdraft Dampr Damper Application Backdraft For Nominal Duct Diameter Not Applicable Frame Material Galvanized Steel Number of Panels 1 Maximum Air Velocity 2000 fpm Overall Height 21 in Rough Opening Diameter 18 1\/2 in Rough Opening Shape Square Fits Fan Diameter 18 in For Duct Shape Not Applicable Free Area 2.1 sq ft Overall Width 21 in Frame Material Thickness 20 ga Overall Length 6 in Connection Type Not Applicable Frame Depth 2 1\/4 in\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":40938989813844,"sku":"60K65A","price":79.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/3316\/7700\/files\/2C517_AS01_53538b22-90b0-42fc-9eaf-a0779cdb3a54.jpg?v=1743442964","url":"https:\/\/jahnda.com\/products\/fan-shutter-18-in-mill-finish-aluminum","provider":"The Jahnda Group - Your Government Supply Provider","version":"1.0","type":"link"}