{"product_id":"dayton-20uc37-louver-damper-adjustable-42-h-x-60-w","title":"Dayton 20UC37 - Louver Damper,Adjustable,42 H x 60 W","description":"\u003cp\u003e44.5 In.H 62.5 In.W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Flanged, Outside Height 41 1\/2 in, Outside Width 59 1\/2 in, Rough Opening Height 42 in, Rough Opening Width 60 in, Louver Maximum Intake 8,602 cfm, Maximum Exhaust 12,301 cfm, Flange Width 1 1\/2 in, Free Area 7.7 sq ft, Beginning Point of Water Penetration 1,118 fpm, Maximum Air Velocity 3000 fpm, Blade Angle 45 Degrees , Material Aluminum, Inside Height 40 1\/2 in, Inside Width 57 3\/4 in, Number of Blades 9\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":43254636740702,"sku":"20UC37","price":1776.69,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Z-oJywkcpEx_8431142b-525e-4fff-a3f7-ee9a54de23cf.jpg?v=1788394838","url":"https:\/\/nationalboilersupply.com\/products\/dayton-20uc37-louver-damper-adjustable-42-h-x-60-w","provider":"National Boiler Supply","version":"1.0","type":"link"}