Caleffi 3/4" FNPT ThermoSetter Adjustable Thermal Balancing Valve w/ Thermal Bypass Cartridge

Features: Adjustable thermal balancing valve for domestic hot water recirculation circuits. With thermal by-pass cartridge for thermal disinfection. Drywell for temperature gauge or probe. DZR low-lead brass body. Optional inlet check valve. Optional outlet temperature gauge. Max. working pressure: 230 psi Adjustment temperature range: 95°F - 140°F Cv max: 2.1; Cv min: 0.23 Cv disinfection: 1.2 Certifi ed to Low Lead Laws and listed by ICC-ES for use in accordance with the U.S. and Canadian plumbing codes.