{"product_id":"dayton-2c521-fan-shutter-18-in-mill-finish-aluminum","title":"DAYTON 2C521 Fan Shutter 18 In Mill Finish Aluminum","description":"\u003cp\u003eDAYTON 2C521 21 In.H-W 6 In.L Aluminum Wall Backdraft Dampr Damper Application Backdraft For Nominal Duct Diametre Not Applicable Frame Material Galvanized Steel Number of Panels 1 Maximum Air Velocity 2000 fpm Overall Height 21 in Rough Opening Diametre 18 1\/2 in Rough Opening Shape Square Fits Fan Diametre 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":"Grainger USA","offers":[{"title":"Default Title","offer_id":46352780296417,"sku":"QZ6KPO","price":178.85,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/3729\/6609\/files\/2C517_AS01_4304c3a3-2164-4d01-85d7-4b6c6e871549.jpg?v=1745024601","url":"https:\/\/www.industrialsource.com.au\/products\/dayton-2c521-fan-shutter-18-in-mill-finish-aluminum","provider":"Industrial Source","version":"1.0","type":"link"}