{"product_id":"dayton-53dr11-shutter-wall-25","title":"DAYTON 53DR11 Shutter Wall 25","description":"\u003cp\u003eDAYTON 53DR11 25 In.H-W 5.75 In.L Alu Wall Backdraft Dampr Damper Application Backdraft For Nominal Duct Diameter Not Applicable Frame Material Galvanized Steel Number of Panels 1 Maximum Air Velocity 2500 fpm Overall Height 25 in Rough Opening Diameter 22 1\/2 in Rough Opening Shape Square Fits Fan Diameter 20 in For Duct Shape Not Applicable Free Area 2.5 sq ft Overall Width 25 in Frame Material Thickness 20 ga Overall Length 5 3\/4 in Connection Type Not Applicable Frame Depth 2 1\/2 in\u003c\/p\u003e","brand":"Grainger USA","offers":[{"title":"Default Title","offer_id":46660000907489,"sku":"SS4FTP","price":274.25,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/3729\/6609\/files\/1C742_AS01_330e977b-7dc8-4fb1-a369-c490a8bbc996.jpg?v=1752576389","url":"https:\/\/www.industrialsource.com.au\/products\/dayton-53dr11-shutter-wall-25","provider":"Industrial Source","version":"1.0","type":"link"}