3 Aluminum King NippleThe 3 Aluminum King Nipple is a versatile plumbing and hose fitting used to connect hoses or pipes in fluid transfer systems. The combination of a hose barb and male pipe thread on a single fitting makes this part highly versatile, providing a strong, leak resistant grip on hoses and ensures a secure connection to pipes, valves, and other equipment. Made from high quality aluminum, it is lightweight, durable, and corrosion resistant. Specification