{"product_id":"dayton-20ua30-louver-damper-adjustable-48-h-x-48-w","title":"Dayton 20UA30 - Louver Damper,Adjustable,48 H x 48 W","description":"\u003cp\u003e51 In.H 51 In.W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Flanged, Outside Height 47 1\/2 in, Outside Width 47 1\/2 in, Rough Opening Height 48 in, Rough Opening Width 48 in, Louver Maximum Intake 8,014 cfm, Maximum Exhaust 11,460 cfm, Flange Width 1 1\/2 in, Free Area 7.2 sq ft, Beginning Point of Water Penetration 1,118 fpm, Maximum Air Velocity 3000 fpm, Blade Angle 45 Degrees , Material Aluminum, Inside Height 46 1\/2 in, Inside Width 45 3\/4 in, Number of Blades 10\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":43260661432414,"sku":"20UA30","price":1669.87,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Z-oJytocpEx_cbfdeafa-e506-4fa1-93a0-c6f11bf4badf.jpg?v=1788453602","url":"https:\/\/nationalboilersupply.com\/products\/dayton-20ua30-louver-damper-adjustable-48-h-x-48-w","provider":"National Boiler Supply","version":"1.0","type":"link"}