About the Honeywell TX-5 2 Gallon Thermal Expansion Tank
Save on the Honeywell TX-5 2 Gallon Thermal Expansion Tank. The Honeywell Thermal Expansion Absorber is an expansion tank with a butyl diaphragm. The Thermal Expansion Tank controls pressure build-up in the system, eliminates relief valve spillage, protects fixtures and extends water heater life.