{"product_id":"dayton-louver-damper-adjustable-18h-x-18w-20ua21-1","title":"Louver Damper, Adjustable, 18H x 18W","description":"21 In.H 21 In.W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Flanged, Outside Height 17 1\/2 in, Outside Width 17 1\/2 in, Rough Opening Height 18 in, Rough Opening Width 18 in, Louver Maximum Intake 779 cfm, Maximum Exhaust 1,114 cfm, Flange Width 1 1\/2 in, Free Area 0.7 sq ft, Beginning Point of Water Penetration 1,118 fpm, Maximum Air Velocity 3,000 fpm, Blade Angle 45 Degrees , Material Aluminum, Inside Height 16 1\/2 in, Inside Width 15 3\/4 in, Number of Blades 3\n\u003cp class=\"tags\" id=\"tags\"\u003e\n    graingerSKU: 20UA21,\nmscSKU: ,\nzoro_no: G8485662,\nmongo_id: 65bbe6073aaddbd5a900196d\n\u003c\/p\u003e","brand":"Dayton","offers":[{"title":"Default Title","offer_id":43771245658289,"sku":"G8485662","price":647.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/6609\/2465\/files\/Z-oJytocpEx_c306f0e6-5b53-40c5-981e-804dcf8c9aa8.jpg?v=1713190373","url":"https:\/\/www.avenjers.com\/products\/dayton-louver-damper-adjustable-18h-x-18w-20ua21-1","provider":"The Tools Man","version":"1.0","type":"link"}