Chromatography Research Supplies, Inc. specializes in manufacturing and distributing supplies and accessories in Gas Chromatography (GC). We are an industry leading manufacturer of gas purifiers, electronic and manual crimping tools, ferrules, injection port septa, and more recently, high quality well plates and sealing mats. CRS is known for providing high quality products as well as top tier customer service to analytical laboratories worldwide. We are based in Louisville, Kentucky, USA in a 1900 square meter facility, where we maintain a gas chromatography test laboratory, engineering facilities and manufacturing in an ISO 9000 environment