Tramec Sloan Coiled Air Assemblies are manufactured in the USA at our facility in Holland, Michigan, using the highest quality components available. We certify our assemblies to meet FMVSS 571.106 & 593.45 specifications and the individual components all meet the SAE J844, SAE J476 & SAE J246 specifications. Don't take chances, when you buy Certified Tramec Sloan Coiled Air, you buy American-made peace of mind.