Made in USA. This stainless steel fitting has many uses but essentially, it quickly and efficiently places a -6AN male end on 3/8" OD tubing. The fitting consists of a -6AN male body, a compression sleeve and a compression nut. We have used this compression fitting on stainless steel tubing in fuel systems and transmission cooler systems as well as return connections on power steering pumps that have a 3/8 OD tube return connection . Simply cut the bubble off of the steel return tube and install this compression fitting onto the tubing. Note: requires approx. 1" of straight tubing for proper assembly. This stainless compression lock fitting is coated with our proprietary Pure Stealth ceramic coating. While it is extremely durable, it is possible to scratch it. Care should be taken during installation to prevent damage.