3/4" Water Pressure Reducing Valve Regulator Double Union FNPT Connection Plumb | eBay
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
G 1/2" 3/4" 1" 2" Brass Water Pressure Reducing Maintaining Valve DN15/DN20/DN25/DN32 Regulator Adjustable Relief Valve Gauge - AliExpress
Wilkins Part # 34-70XL - Wilkins 3/4 In. 70Xl Pressure Reducing Valve - Water Pressure Reducing Valves - Home Depot Pro