This kit is designed to attach directly to a Berkeley 12JC/JG (or similar) pump. The kit includes a garden hose type union that can be easily thread apart and connected to a garden hose allowing you to easily run your jet boat while it is on the trailer. This kit does not include a gate valve and terminates at a male 1/2" NPT fitting where you can thread in your existing 1/2" NPT gate valve to complete the system.