Hansen Max-Flo Valve 25 mm x 20 mmThe Hansen Max~Flo Diaphragm Valve has been designed with multiple thread and connection combinations to increase overall durability and versatility. The Patent pending Self Cleaning Pilot ensures the valves are durable and suitable for dirty water applications. Less operating pressure is required, reducing pumping costs and increasing flow. Mini body design allows for easy installation across a wide range of applications and our 30 year time tested