Mako Products is a distributor for oilfield and industrial products such as Superlok fitting, tube fittings, instrument fittings, Superlok valve, ball valves, needle valves and stainless steel tubing. We also have other products readily available. BACKGROUND: We are the exclusive United States distributor for the Superlok i-Fitting. If you're looking for the home of the "Red Ring," you've come to the right place! Mako Products holds the exclusive right to this patent in the US. It's the newest invention in the oil and gas industry that provides safety and reliability! The Superlok i-Fitting won the Gold Medal for Safety and Security/Industrial at it's debut in the 2014 Invention and New Product Exposition trade show in Pittsburgh, PA. It takes care of over-tightening and under-tightening, no more guessing the connection! Consistency is produced every time. Call us today to check out our unique line of tube fittings! We also stock instrument fittings,stainless steel in-line check valves, SS and CS needle valves, ball valves, and welded and seamless SS tubing. More information, including downloadable spec sheets can be found at www.mako-products.net