This is a DXD 340 A a very powerful 4 horsepower heavy duty water circulation pump that is used in swimming pools, hot tubs and large whirpool baths. This is a suitable replacement for DXD model 340A pumps.The pump comes with two white union connectors (measurements below), which can be seen in product images.DXD 340 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): 4.0 HPPower: 2.8 kW (or 2800 watts)Volts: 230V / 50 HzProtection Grade: IP 55Maximum Lift (i.e. the maximum height the pump can pump water to): 21.0mImpeller Rotation Speed (RPM): 2850Maximum Water Flow (Litres Per Minute): 925Insulation Class: BGross Weight: 20.0 kgPump Union Connector: - Diameter of the union thread is 69mmm - Diameter of the female union is 75.5mmmCan be used in a swimming pool as well as a spa.We deliver the DXD 340 A pump worldwide with a dedicated courier such as DHL or UPS.