Arrow Industries introduces its popular Quik-Lok push-to-connect fittings, the premium cost-effective choice for the RO component market. These polypropylene fittings incorporate stainless steel gripper teeth to offer optimum performance. All fittings are NSF certified, including heat-resistant nitrile O-rings, which are less likely to wear out with age. A complete selection of fittings and valves are offered in 0.25- and 0.375-inch (6.35- and 9.52-mm) sizes. Inquire today for free samples. http://www.arrowindustries.com