$187.49 27"H-W 5.75"L Alu Wall Vent Shutter B94

Updated September 19, 2026

$187.49 27"H-W 5.75"L Alu Wall Vent Shutter. For 24 in Fan, Single Panel, 27 in H, 27 in W, 2 1/2 in D, Wall https://www.grainger.com/product/DAYTON-27-H-W-5-75-L-Alu-Wall-Vent-1C746?searchQuery=1C746D&searchBar=true&xRefMatch=true&tier=Tier+8&s_e=false&s_c=solr8 Wall-mount backdraft dampers, also called wall shutters, are installed vertically on the wall vents of an HVAC system to prevent backdrafting. They feature weighted blades that open when the system is running and close when it is not to keep the conditioned air in the occupied space. Dayton Backdraft Dampers & Wall Shutters Fact Sheet Dayton Shutters Installation Instructions BrandDAYTONManufacturer Part Number1C746Rough Opening ShapeSquareNumber of Panels1Mounting LocationWallMounting PositionVerticalFits Fan Diameter24 inOverall Height27 inOverall Width27 inOverall Length5-3/4 inOpen Depth5-3/4 inOverall Diameter27 inDamper TypeStaticFrame Opening Height24 inFrame Opening Width24 inFrame Depth2-1/2 inRough Opening Length24-1/2 inRough Opening Width24.5 inRough Opening Diameter24-1/2 inFree Area3.3 sq ft Flange TypeRear FlangeFlange Width1-1/2 inFrame MaterialGalvanized SteelBlade TypeFlat BladeBlade OrientationParallel BladesBlade Material Thickness26 gaBlade MaterialAluminumBlade Seal MaterialFeltTie-Rod MaterialGalvanized Steel Frame and Tie RodsMaximum Pressure1 in wcMaximum Air Velocity2500 fpm Maximum Ambient Temperature180 °FAirflow DirectionHorizontalSwitch ActionNormally ClosedMounting Hole Diameter1/4 inSeries556Bushing MaterialStainless SteelCounterbalancedYesDamper FinishMill FinishFrame Less Flange24Frame Material Thickness20 gaClosure TypeGravityClosure Velocity Rating2,500 fpmIncludesPrepunched Mounting Holes; Felt edged Counterbalanced Louvers; Weep Holes In Frame BottomOpening TypeGravityActionSingle ActingUNSPSC40101504Country of OriginUSA (subject to change) ****** IMPORTANT NOTE ******* By bidding on this lot you hereby acknowledge and agree to the following terms: * We do not guarantee the packaging or box of any item. * We don’t expect anyone to pay for an item that is not as represented, however we ask that you preview items prior to bidding. * Minor issues such as scuffs or minor scratches will not be warranted. * Larger items or chemicals may not be eligible for shipping, especially international. * International shipping is available, however we ask the customer to arrange their own shipping and send us a pre-paid label. We will NOT guantee any product being shipped. If you wish to purchase shipping insurance, please purchase that extra. No returns allowed unless item is not as represented. * All winnings MUST be paid for no later than Friday following the conclusion of the auction. Any items not paid by Friday will be charged to the credit card on file. If funds are not available your account will be revoked and you will not be available to participate in future auctions until the account is made current. * All items paid

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