Refinery Supply Company, Inc.... Since 1923 the prime source and leading producer of the finest equipment in the oil and gas industry. Complete stock of dead weight testers and gauges, dewpoint testers, Yel-O-Bak A.S.T.M. thermometers and hydrometers are available for prompt delivery. New Factory Items in this catalog include a complete line of RSC Centrifuges, new Light Weight Testers, and Gauges, and a new Titrator for mercaptans and olefins. Other New Listings include a complete line of vacuum pumps, ovens, incubators, microscopes, as well as new gauges, valves and fittings. A complete catalog of these new items is available upon request. LPG test equipment, laboratory supplies, glassware, chemicals and dial thermometers are also in stock in the Tulsa warehouse. Prompt repair service is maintained for all brands and types of dead weight testers and gauges as well as other manufactured equipment. factory and N.I.S.T. calib rators are done at our Tulsa factory. Avoid substitutions... use the Refinery Supply Company catalog for genuine RSC test equipment.|Year Established: 1923.