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Feature

InLine well tank
Watertight reservoir for expanded water
Thick, heavy duty Butyl/EPDM diaphragm for long service life
Sealed air cushion - factory pre-charged and 100% tested
Strong, deep-drawn steel tank

Description

Amtrol Inc. designed and patented the first Extrol diaphragm expansion tank in 1954 to control system pressure and help reduce energy consumption in heating and chilled water systems. Over six decades later, Extrol is still the world's leading expansion