Chicago Fittings Corp.

Chicago Fittings, a product line of A.Y. McDonald Mfg. Co., develops and manufactures specialty joining solutions and fittings for natural gas, propane, and industrial hydraulics markets. Its product lineup includes the X-Riser, designed without underground joints. The company provides engineered solutions across concept and design, prototyping, testing, validation, and production, serving customer projects from early development through manufacturing. It also maintains an ISO 9001:2015-certified quality management system and emphasizes continuous improvement.