Jandy Pro Series 7307 2 1/2"-3" 180 Degree Check Valve feature a clear lid and red seal plate for easy inspection, as well as a unique swing/spring design. It's made of the toughest CPVC material and can easily be disassembled for clearing debris. It is available in 180° and 90° models and multiple plumbing sizes. The 7307 Large Check Valve model is designed to easily connect with the Jandy 3HP Stealth Pump and can handle flow rates up to 170 gallons per minute with minimal head loss, making it great for applications that require high flow rates.