Watts Backflow Preventer 3/4 In Water Pressure Reducing Valve, Npt Thread Union X Npt Female, Max Work 400 psi, Adjust 25-75 psi: Hvac Controls: Amazon.com: Industrial & Scientific
TEEJET 23120A PRESSURE RELIEF VALVE 3/4" PP
0011917 - Watts 0011917 - 3/4" 3L-150 Poppet Type Pressure Relief Valve w/ Test Lever (150 psi)
Water Pressure Relief Valve 3/4" NPT - CP Performance
3/4" Temperature and Pressure Relief Valve | Eccotemp