Great Lakes Technical Services supports users of Hewlett Packard & Agilent Gas Chromatograph (GC), Liquid Chromatograph (LC), Mass Spectrometer and associated Computer Systems. Our goal is to provide great customer service value to our customers. Our customers appreciate our timely and competitively priced service by our service person, Geoff Wilson, who has almost 30 years expertise in the business. We also benefit our customers by providing vacuum/foreline pumps, fittings, and turbo pumps with up to next-day shipping.