This is a Never Lube 2-Port Positive Seal Diverter Valve, 1-1/2 to 2 inch, by Jandy (Zodiac). The standard size diverter valves are completely maintenance-free and built from the toughest CPVC material. They can withstand extreme chemical and temperature fluctuations without ever leaking, cracking or breaking. They are ready to use alone or with a Jandy Valve Actuator for automatic operation.
The Never Lube diverter valves can handle flow rates up to 170 GPM with minimal head loss, making them great for spas and water features that require high flow rates. They have a lifetime guarantee on ever leaking, cracking or breaking.