{"product_id":"dayton-20uc04-louver-damper-adjustable-48-h-x-30-w","title":"Dayton 20UC04 - Louver Damper,Adjustable,48 H x 30 W","description":"\u003cp\u003e50.5 In.H 32.5 In.W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Flanged, Outside Height 47 1\/2 in, Outside Width 29 1\/2 in, Rough Opening Height 48 in, Rough Opening Width 30 in, Louver Maximum Intake 4,808 cfm, Maximum Exhaust 6,876 cfm, Flange Width 1 1\/2 in, Free Area 4.3 sq ft, Beginning Point of Water Penetration 1,118 fpm, Maximum Air Velocity 3,000 fpm, Blade Angle 45 Degrees , Material Aluminum, Inside Height 46 1\/2 in, Inside Width 27 3\/4 in, Number of Blades 10\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":43258167001182,"sku":"20UC04","price":1338.51,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Z-oJywkcpEx_6b8261c5-8c9f-4078-bb34-d44f87959e82.jpg?v=1788417119","url":"https:\/\/nationalboilersupply.com\/products\/dayton-20uc04-louver-damper-adjustable-48-h-x-30-w","provider":"National Boiler Supply","version":"1.0","type":"link"}