TANKLESS WATER HEATER VALVE KIT: Watts LFTWH-FT-HCN service valve kit for tankless water heater valves simplify the installation, maintenance and operation of tankless water heaters.SERVICE VALVE KIT FOR TANKLESS WATER HEATER: The tankless water heater service valve kit replaces up to 18 fittings and 16 connections used in typical tankless water heater installations, color-coded tee handle. Optional pressure relief and check valve.MULTIPLE CONNECTION VALVE KIT: They are available in two valve sets or as a single valve with female threaded, union or quick-connect end options. The service valve kits are available with or without a relief valve. Facilitate service and maintenance with cold water inlet and hot water outlet valves certified to NSF/ANSI 61.LEAD FREE VALVE KIT: The wetted surface of our Lead Free products contacted by consumable water contain less than one quarter of one percent (0.25 percent) of lead by weight.WATER SERVICE VALVE KIT: Purge/drain ports allow regular cleaning to remove scale build-up. The kit includes LF4L - Lead free poppet type pressure relief valves for protection against excessive pressure and LFTWH - Lead Free Tankless Water Heater Valves.