Amtrol Extrol - 14 Gallon - Vertical Boiler System Expansion Tank

In 1954, Amtrol invented the first expansion tank to control pressure build-up and energy consumption in heating and chilled water systems. More than 50 years later the SX is still the one of the world?s leading floor-standing expansion tanks and is proudly made in the USA! The SX vertical boiler system expansion tank collects expanded water as system temperatures rise, reducing potentially dangerous pressure build-up. Equipped with a 100 percent tested sealed air cushion, water-tight reservoir, air stem for pre-charge adjustment, and a deep drawn steel tank, the SX is reliable and built to last. The SX-30V is ideal for large residential and light commercial applications and can be used with high output boilers.