{"product_id":"louver-damper-adjustable-42h-x-18w","title":"Louver Damper Adjustable 42H x 18W","description":"\u003cp\u003e44.5 In.H 20.5 In.W Drnbl Extrd Alu Combo Dmpr Louver Type Combination Frame Type Flanged Outside Height 41 1\/2 in Outside Width 17 1\/2 in Rough Opening Height 42 in Rough Opening Width 18 in Louver Maximum Intake 2 264 cfm Maximum Exhaust 3 237 cfm Flange Width 1 1\/2 in Free Area 2 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 15 3\/4 in Number of Blades 9\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":40930521546836,"sku":"01T72A","price":1509.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/3316\/7700\/files\/20UA33_AS01_9c482f3f-c376-46e8-9838-2090dd7d8176.jpg?v=1742532998","url":"https:\/\/jahnda.com\/products\/louver-damper-adjustable-42h-x-18w","provider":"The Jahnda Group - Your Government Supply Provider","version":"1.0","type":"link"}