Marketing InformationThis 3/4 in Gen II tankless water heater service valve with VersaFit™ technology is designed to simplify the installation and maintenance of tankless water heaters. It replaces up to 18 fittings and 16 connections used in typical tankless water heater installations. VersaFit™ technology provides versatility to easily configure the relief valve to the left or right-side of the hot valve and keep the drain port facing forward for simpler installation and maintenance. This 3/4 in tankless water heater valve set consist of hot and cold-water heater valves made of lead-free copper silicon alloy, 3/4 in FNPT unions for connection to water heater, 3/4 in FNPT connections for plumbing lines and a 150 psi, 3/4 in pressure relief valve.