This is a DXD 6X 1.5HP air pump which can be used to replace air pumps on hot tubs, spas, swimming pools and whirlpools etc. Technical Specifications of the DXD 6X Pump below: - Model: DXD 6X / DXD6X / DXD 6 X - Diameter of the Female Pump Union Connector That Connects to the Air Pump: 39.5mm / 1.56" inches (1 and 9/16" inches) - Diameter of the Connector on the Air Pump: 47.5mm / 1.87" inches (1 and 7/8" inches) - Voltage: 230V/50HZ/60HZ - kW (Kilowatt): 1.0 - HP (Horsepower): 1.5HP - Rotation Speed: 36,000 rotations per minute - Wind Speed: 85Km/h - Decibels: 85dB - Protection Grade: IPX 5 - Gross Weight: 3.0 kg - Insulation Class: F The DXD 6X 1000 pump may be used on Sparmax models of spas in Norway, as well as other brands not mentioned on this page. We carry two varieties of air blowing machines: T LX Air Pumps T DXD Air Blowers Frequently Asked Questions: DXD 6X 1000 Air Blower Question: Is it important to have an air blower is a hot tubT Answer: Air blowers and hot tub jets are not to be confused with each other. Air blowers, also known as air pumps and bubblers, blow air through the tubTs special jets. It produces more air bubbles which makes for better hot tub relaxation and aromatherapy. Question: How will I know if this air blower is the right part for my tubT Answer: Air blowers must be compatible with the hot tubTs or spaTs system. If youTre looking for a replacement blower, you can check the label on your old blower and compare it with the specifications given above. T Your home or establishmentTs plumbing system must be compatible with the air blower. T Check the voltage