Specification Brand : Dayton ControllerType : Button Control ElectricFanDesign : exhaust_fan ExternallyAssignedProductIdentifier1 : 0696333095938 ExternallyAssignedProductIdentifier2 : 696333095938 ItemName : Dayton Blade, Fan, 24 in - 4C231 ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 2 inches ItemPackageDimensions_Width : 2 inches ItemPackageQuantity : 1 ItemTypeKeyword : industrial-hvac-fans-and-circulators Manufacturer : CAI - DAYTON Material : Aluminum NumberOfBlades : 3 PartNumber : 4C231 ProductDescription : Air Circulator and Exhaust Fan Aluminum Replacement Propellers No. of blades: 3 CW rotation facing discharge Embossed aluminum blades and spiders for strength and rigidity Hubs include set screws (hub on intake side) For low static pressure applicationsNote: Air deliveries based on standard test codes of AMCA. When used in system over 0.250" SP, increase motor HP to next larger size.