Rinnai is introducing its new dedicated return valve (DRV) which makes installation a snap on any plumbing system with a dedicated recirculation line. The DRV is a two-piece fitting with ¾” FNPT connections. It contains an internal spring check valve to prevent backflow of the cold-water supply line into the dedicated return line. The DRV has ball valves and drain ports on both on the cold water inlet and the return line, so that you can isolate and purge either section of the plumbing system.
Fast and easy installation of dedicated return line to tankless water heater
Reduce install time with integrated drain port for purging of system
Easy to service with integrated ball valves
Internal Spring Check Valve
Replaces cold isolation valve
Geniune Rinnai Accessory
Backed by Rinnai's 1-year warranty