Hydro-Rain's Heavy-Duty Double Union with Swivels is ideal for connecting two or more manifolds together or to add an additional valve to an existing manifold system. No tools are required, just hand-tighten the fittings to the valve. The o-ring ensures a watertight connection. Hydro-Rain manifold fittings are constructed of high-impact and UV resistant polymers.
Example of a parts list for a sprinkler valve manifold kit.