Profile: Chromatography Research Supplies, Inc. offers chromatographic equipments. Our products are rota-meters, gas purifiers, moisture traps, hydrocarbon traps, oxygen traps, gas flow-meters, gas flow controllers, valves, gauges and regulators. Our ZPure™ purifiers offer a compact design and fit existing installations that use small aluminum filters. They are constructed of a stainless steel body with either brass or stainless steel compression fittings. Our oxygen traps are intended for use with the common non-oxidizing gases like He, H2, N2, Ar & CH4 and regeneration service is available.