Orbit watermaster 3 valve preassembled manifold with easy wire-the preassembled manifold provides the most complete, reliable and easy method to install multi-valve systems. this system works with both 3/4 and 1-inch systems. included is our jar-top valves for easy valve maintenance. the easy wire system simplifies the wiring connection when attaching the valve to the timer. the preassembled manifold is durable, built with high impact uv resistant construction.