Jandy Check ValvesJandy Check Valves Constructed of the same tough CPVC material used on theNeverLube. Our Check Valve?s clear lid and red seal plate let you easily see andaccess debris. It features a unique swing/spring design for both return andintake water. The diverter swings completely open with minimal back pressure andno water turbulence. Minimal hydraulic loss Clear lid for easy inspection Easy to disassemble when clearing debris Available in straight-through and 90 Corrosion resistant stainless steel swing Highly resistant to Chlorine