Chicago Fittings has been an industry leader manufacturing specialty joining methods for a number of markets including natural gas and propane. Chicago Fittings has been, and continues to be recognized more prevalently for the ability to provide “Engineered Solutions”. At Chicago Fittings, we work with our parent company to outsource the design concept then we handle the prototyping, testing & validation, through production; Chicago Fittings will be there to assist you through every facet of