The seal to the gray rigid tubing is accomplished through use of an O-ring which seals against the OD of the tubing. The tubing is held into the quick connect fitting by stainless steel gripping teeth. Push the locking collet squarely against the body of the quick connect fitting and the tubing can be released. If your boat has dark gray fresh water hoses, then this elbow was used on your boat.

• Configuration: Elbow
• Male thread: 1/2" NPT (National Pipe Tapered Thread)
• Quick connect: 1/2" rigid gray tubing (outside diameter is 5/8")
• Typical tubing: Solid gray, rigid tubing