Conbraco 10-604-20 | Conbraco 10-604-20 Bronze Pressure Relief Valve, Hot Water, 100 PSI, 3/4" NPT Female | AF Supply
Jones Stephens 200 PSI Sillcock/Water/Gas Test-Gauge Brass 3/4-in Fip Pressure Relief Valve in the Pressure Relief Valves & Regulators department at Lowes.com
STAINLESS STEEL 3/4" 100 psi PRESSURE RELIEF VALVE for WATER WELL Pump Pressure tank - Amazon.com