Hayward Flow Control’s YC Series Y-Check Valves in natural PVDF is ideal for extreme corrosive media or sensitive media systems and higher-temperature services. The valve is available in either threaded or IPS socket fusion molded-in end connections. The piston is made from PVDF material and FPM O-ring seals are standard. Sizes include 1/2, 3/4 and 1 inch. All sizes carry a rating of 150 psi nonshock at 70 degrees F. Maximum service temperature is 240 degrees F. 888-429-4635; www.haywardflowcontrol.com