This is a DXD 8 A motor water pump which is used on hot tubs, pools and whirlpool baths. This is a suitable replacement for DXD model 8 A pumps.The pump comes with two white union connectors (measurements below), which can be seen in product images.DXD8 A Technical InformationDiameter of the Female Pump Union Connector That Connects to the Water Pump: 55.5mm / 2.185" inches (2 and 3/16" inches)Diameter of the Two Threaded Connectors on the Pump: 62.5mm / 2.46" inches (2 and 29/64" inches)Horse Power (HP): 1.5 HPPower: 0.5 kW (or 500 watts)Volts: 230V / 50 HzProtection Grade: IP 55Maximum Lift (i.e. the maximum height the pump can pump water to): 8.5 metresImpeller Rotation Speed (RPM): 2850Maximum Water Flow (Litres Per Minute): 208Insulation Class: BGross Weight: 6.0 kgPump Union Connector: 2 1/2" inch to 2" inch connector (click here to see further information on this pump union)Can be used in a swimming pool as well as a spa.We deliver the DXD 8 A pump worldwide.