The drain valve is used to drain condensation from your pool heat pump in a controlled manner. By connecting a hose, the condensation can be drained away cleanly and efficiently. The valve is compatible with the Mini, Silent Mini, Solid 4.3, Startis Mini, Startis Style and Flex 5 heat pumps. The outer diameter of the valve, which is inserted into the underside of the heat pump, is 21.5 mm. The outer diameter of the drain outlet for the hose connection is 12.7 mm. The drain valve thus offers a simple and practical solution for the proper drainage of condensation.