Specification Brand : Lennox BulletPoint1 : Energy-Efficient Ventilation: This blower with a fan speed of 2500 RPM creates an air flow of 203 CFM; It combines the features of both axial and centrifugal fans to achieve optimal ventilation BulletPoint2 : Quiet Operation: The sturdy leather can reduce sound or vibration; Tight and precise construction eliminates rattling; The centrifugal impeller provides powerful airflow and has a low noise of 49 dB BulletPoint3 : Adjustable Speed: This centrifugal fan is equipped with a stepless speed controller to enable the fan to run at different speeds; You can adjust it to the desired airflow level BulletPoint4 : Easy to Install: This duct fan comes with a mounting bracket that the fan can be lifted by rope hangers; Quick installation and easy maintenance by simply removing the locking duct ends BulletPoint5 : Versatile Applications: Ideal for air cleaning and temperature control in industrial, home and garden planting ventilation applications Color : Black ControllerType : Button Control ControlMethod : application CustomerPackageType : Standard Packaging ElectricFanDesign : blower ExternallyAssignedProductIdentifier1 : 714119466366 ExternallyAssignedProductIdentifier2 : 0714119466366 FinishType : Painted IncludedComponents : Cord IndoorOutdoorUsage : indoor IsElectric : 1 ItemDisplayDimensions_Height : 9.7 inches ItemDisplayDimensions_Length : 12 inches ItemDisplayDimensions_Width : 10.2 inches ItemDisplayWeight : 8.1 pounds ItemName : Lennox 15D57 Defrost Board w/Sensor ItemPackageDimensions_Height : 28.0924 centimeters ItemPackageDimensions_Length : 12.2174 centimeters ItemPackageDimensions_Width : 20.955 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : hvac-controls MainPowerConnectorType : NEMA 5-15 Manufacturer : VIVOSUN Material : Metal ModelName : Inline Fan Z4 ModelNumber : 15D57 MountingType : Wall Mount NoiseLevel : 49 decibels NumberOfBlades : 1 NumberOfBoxes : 1 NumberOfItems : 1 NumberOfSpeeds : 3 PartNumber : 15D57 PowerSourceType : Corded Electric ProductDescription : Lennox Defrost Control Board 15D57, FOR VARIOUS HEATS. This is a great Lennox OEM part. ProductDescription1 : Part Number:FPRO100 fpro100 furnace pro switch clip ProductDescription2 : Two Ways To Work:FPRO100 furnace switch clip can be placed directly on the switch, or if you have a probe fire door switch, you can place the magnet side on the side of the metal box, and the side without the magnet can keep the switch inside ProductDescription3 : Product Dimensions:4.05 × 0.99× 0.62 inches ProductDescription4 : Easy To Operate:FPRO100 furnace switch clip can be used with multiple types of furnace interlock switches, joysticks and buttons, simplifying service preparation in furnace applications ProductDescription5 : Premium Quality:Durable nylon construction and strong rare earth magnetic ends ProductSiteLaunchDate : 2018-03-26T07:00:00.000Z RecommendedUsesForProduct : Lighting RoomType : Kitchen Size : Z4 4 Inch Style : 4'' with Speed Controller SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 52000000 Voltage : 5 volts Wattage : 68 watts