Royal Brass Male Boss - Female Boss
** Price varies by size**
Used to connect a Female Boss fitting to a Male Boss fitting.
Boss fittings are for hydraulic applications. An o-ring boss seal is a technique for joining two fluid-carrying pipes, hoses, or tubing. In an o-ring boss (abbreviated ORB) system, a male-threaded part is inserted into a female-threaded part, providing a mechanical seal.