{"product_id":"dayton-4gy95-wall-backdraft-damper-vertical-mount-48-in-dia-fan-57-1-4-in-h-x-57-1-4-in-w","title":"Dayton 4GY95 - Wall Backdraft Damper, Vertical Mount, 48 in Dia Fan, 57-1\/4 in H x 57-1\/4 in W x 6-1\/4 in D","description":"\u003cp\u003e57 1\/4 In.H-W Aluminum Wall Backdraft Dampr, Frame Material Galvanized Steel, Number of Panels 2, Maximum Air Velocity 2500 fpm, Overall Height 57 1\/4 in, Rough Opening Shape Rectangular, Fits Fan Diameter 48 in, Free Area 16.7 sq ft, Overall Width 57 1\/4 in, Frame Material Thickness 0 ga, Frame Depth 2 1\/2 in, Rough Opening Length 54 in, Maximum Pressure 1 in wc, Rough Opening Width 54.5 in, Blade Material Aluminum, Closure Type Gravity, Flange Width 1 1\/2 in\u003c\/p\u003e","brand":"DAYTON","offers":[{"title":"Default Title","offer_id":43258167066718,"sku":"4GY95","price":490.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Z__tptfo5oy_c1f341a2-ab92-4617-9229-5579c428e697.jpg?v=1788417122","url":"https:\/\/nationalboilersupply.com\/products\/dayton-4gy95-wall-backdraft-damper-vertical-mount-48-in-dia-fan-57-1-4-in-h-x-57-1-4-in-w","provider":"National Boiler Supply","version":"1.0","type":"link"}