The Hayward ECX1322A Directional Air Vent Valve is a specialist component for pool filtration systems that controls air flow and ensures peak efficiency. This valve is an important pool filter component that allows for the effective discharge of trapped air from the filter system. The air vent valve enables for regulated air release, preventing airlocks and ensuring consistent filteri... https://www.usapoolshop.com/ecx1322a-hayward-directional-air-vent-valve-w-o-ring