By the thousands! We have thousands of fittings and connections in stock. Great Lakes International is a stocking distributor for some of the industry's leading manufacturers of fittings. Brand names such as John Guest, Jaco, Parker, SMC, Spears and more. Our automated warehousing system gives us the capacity to efficiently store and retrieve over 10,000 fittings and component parts. The systems' elaborate inventory control software increases our ability to ship more orders in a day and offer our customers same-day order shipments. More efficiency for us, means less cost to you.