Amtrol ST-30VC-DD Therm-X-Trol ASME Thermal Expansion Tank (16.6 Gallon 150PSI)

Amtrol thermal expansion tanks are engineered to control pressure build-up in closed, potable water systems. Available in diaphragm, full acceptance and partial acceptance bladder designs, all Therm-X-Trol expansion tanks are made at our ISO 9001 : 2015 certified facility. ASME tanks meet Section VIII, Division 1 Standards.