Poolstore's innovative Non-Return Valve features heavy duty construction and materials to provide years of trouble free operation. Extra large acrylic viewing window allows at a glance inspection on waterflow. This non-return valve is ideally suited to filtration installations that are positioned above pool water level, to hold water head in system to keep the pump primed, ready for each time the pump operates automatically. Stainless steel actuating Spring and double lipped gasket ensure a reliable seal everytime.
