Made in USA. Sold as a kitr, these Pure Stealth GM/Delco Factory Proportioning Valve Fittings x -3AN Male adapters are made of steel and coated with our proprietary Pure Stealth black ceramic coating. Includes aluminum tube sleeves & tube nuts for -3AN 37 degree flare tubing applications. Although our Pure Stealth coating is extremely durable, it can be scratched. Care should be taken during assembly to prevent damaging the coating,

Kit includes:

One 7/16-24 Adapter

One 1/2-20 Adapter

One 9/16-18 Adapter

Two 3/8-24 Adapters

Five-3 Aluminum Tube Sleeves

Five Aluminum Tube Nuts