{"product_id":"dayton-20uc23-louver-damper-adjustable-42-h-x-48-w","title":"Dayton 20UC23 - Louver Damper,Adjustable,42 H x 48 W","description":"\u003cp\u003e44.5 In.H 50.5 In.W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Flanged, Outside Height 41 1\/2 in, Outside Width 47 1\/2 in, Rough Opening Height 42 in, Rough Opening Width 48 in, Louver Maximum Intake 6,791 cfm, Maximum Exhaust 9,711 cfm, Flange Width 1 1\/2 in, Free Area 6.1 sq ft, Beginning Point of Water Penetration 1,118 fpm, Maximum Air Velocity 3,000 fpm, Blade Angle 45 Degrees , Material Aluminum, Inside Height 40 1\/2 in, Inside Width 45 3\/4 in, Number of Blades 9\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":43255201398878,"sku":"20UC23","price":1386.47,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Z-oJywkcpEx_d51d1fc1-da2b-4f05-b8d4-4ff7e42a73fe.jpg?v=1788402230","url":"https:\/\/nationalboilersupply.com\/products\/dayton-20uc23-louver-damper-adjustable-42-h-x-48-w","provider":"National Boiler Supply","version":"1.0","type":"link"}