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 inch female NPT unions for connection to water heater, 3/4 in female sweat connections for plumbing lines and a 150 psi 3/4 in pressure relief valve.