The most common requirement in gas purification is to remove a wide spectrum of impurities from the supply gas, and the ZPure PolyGas Purifiers are designed with this in mind. The ZPure PolyGas II Purifier removes H2O, CO2, halogenated compounds, siloxanes, hydrocarbons heavier than butane, sulfur-containing molecules, and ammonia from inert gases, He, Ar, N2 and H2. It can be used to provide end-point detection for use with other ZPure Filters. This version of the PolyGas II Purifier has a glass body with a polycarbonate shell that isolates the gas stream. It contains a highly sensitive visual indicator for water contamination. The moisture indicator signals breakthrough when it changes from blue to brown. The ZPure Glass Filters and Purifiers are available with standard compression fittings or quick connect fittings in 1/4” and 1/8” brass and stainless steel.