Simplifies water heater installations;Choice of hot and cold connection solutions;FIP dielectric unions for code-compliant connection to the water heater;Isolates the water supply and expansion tank for service;Compatible with 3/4" MIP expansion tanks up to 5 gallons;Saves Up to 2 Hours;Replaces Multiple Components;Eliminates 15 Leak Paths;This valve is actuated by a blowout proof stem;Models available to satisfy all state and federal low-lead laws;Patents Pending;Available in FIP Union x SWT, FIP Union x PRS, FIP Union x MIP;Certified to NSF/ANSI 61 & 372