Connect the 1/2" Double Union Female Valve to the Manifold as this will allow you to regulate the flow of water to each individual plant. Before inserting the 180 Degree Sprayers/Emitters, connect one Manifold Bracket to each side. When done, choose between the 1/2" MPT - 1" PVC Slip fitting for PVC hard-pipe installations or the 1/2" MPT - 3/4" Barb Tee fitting for Vinyl Hose installations.