The Aqua View ShowerMiser is a freshwater reclamation System for RVs. Unlike water flow restriction devices, Aqua View's patented ShowerMiser freshwater reclamation system recirculates unused freshwater before it ever goes down the drain, saving money and extending your fresh and gray water tank capacities up to 40% without changing tanks or adding weight. No more wasted water â and money â down the drain. The AquaView ShowerMiser SMZ001 connects anywhere on the non-pressurized side of the freshwater system, for example, the fresh water tank or the input side of the water pump. You simply remove the shower head, attach the ShowerMiser unit, line up and mark where the return line will be, and then drill only one hole in the shower wall through to the inside wall where the other plumbing is maintained. Using the provided lock washer, tighten the ShowerMiser snugly against the wall. Using a return line with a 1/2" female pipe thread fitting, attach the return line to the ShowerMiser unit. Lastly, connect the other side of the return line to anywhere it is convenient on the non-pressurized side of the fresh water system. What Comes in the Kit: ShowerMiser UnitDiverter Valve (Bronze)Custom-Threaded Through-Wall PipeLock Nut and Washer (to secure unit tightly against the shower wall) Connects anywhere on the non-pressurized side of the freshwater system Provided lock washer tightens ShowerMiser snugly against wall Includes oil-rubbed bronze diverter valve | Camping World Aqua View ShowerMiser SMZ001 for RVs and Boats, Oil-Rubbed Bronze in Grey