A system includes a body with a fluid passage therethrough, a first open end, and an opposite termination, a valve positioned within the body and including first and second ends, the valve moving between open and closed positions, the valve being biased into the closed position, and a seal positioned on the second end of the valve, the seal forming the closed position when the valve is biased towards the first open end of the body, and the seal engaging a shoulder formed by the body to retain the valve within the body. The seal is accessible from the termination of the body to allow the valve to be coupled to the body.