The Watts B1156F PRV Valve (Part# 0386423) is a durable pressure-reducing valve designed for 1/2" IPS connections. It features a robust brass body, ensuring reliability and corrosion resistance, ideal for use in residential and commercial plumbing systems. The valve is factory-set to regulate water pressure between 12-15 PSI, protecting systems from excessive pressure, leaks, and damage. https://www.partshnc.com/b1156f-watts-prv-valve-12--ips-brass-body-set-12-15-psi-0386423-replaces-1156f