The Hayward SPX0603S Vari-Flo Filter Multiport Spring Valve is a long-lasting, high-quality component developed to improve pool filtration systems. This spring valve is made of strong steel, which ensures long-term durability and corrosion resistance, making it ideal for the harsh environment of pool care. It measures 1.5" in length, 1.4" in height, and 1.5" in breadth and is compact ... https://www.usapoolshop.com/spx0603s-hayward-vari-flo-filter-multiport-spring-valve