{"product_id":"dayton-3azk8-roof-curb-adapter-curb-side-sq-o-d-21-in","title":"Dayton 3AZK8 - Roof Curb Adapter,Curb Side Sq O D 21 In","description":"\u003cp\u003eRoof Curb Adapter, Adapter Type Increaser, For Fan Base Size 18 1\/2 in, For Curb Size 21 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 21 in, Fan Side Width 18 1\/2 in, Finish Galvanized, Function Adapts 19 in Fan Base to Fit 21 in Roof Curb, Includes (8) 1\/4-20 Tinnerman Speed Nut, (8) 1\/4-20 x 3\/4 Bolts, Metal Material Thickness 18 ga, Number of Fasteners per side 2, Overall Height 5 in, Top Flange Height 2 1\/2 in\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":43260604776542,"sku":"3AZK8","price":336.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Z0yO6-fo5oy_0ba9dbc0-8b3b-49bc-98ac-bc062d70e371.jpg?v=1788451883","url":"https:\/\/nationalboilersupply.com\/products\/dayton-3azk8-roof-curb-adapter-curb-side-sq-o-d-21-in","provider":"National Boiler Supply","version":"1.0","type":"link"}