Plast-O-Matic RVD Series PVC Relief Valve for Low Through High Pressure, For Corrosive and Ultra-Pure Liquids, 5-100 psi Pressure Range, 1/4" NPT Female: Industrial Relief Valves: Amazon.com: Industrial & Scientific
PVC Solenoid Valve 1-1/2 Inch 110V With Flow Control
Item # RV1050TE, 1/2" PVC Pressure Relief Valves w/EPDM seals; threaded end connections On Hayward Flow Control
G 1/2 inch L-port 3-Way PVC Electric Ball Valve 100-240 V AC PTFE/EPDM | Tameson.com