This 44-piece set includes an assortment of valves, tubes, hoses, caps, suction mounts and a sprayhead, as well as the AquaStruct WaveRider OceanSpray Surfboard Tub Mat and the AquaStruct TubeWave OceanSpray Shower Curtain. It is designed to help tweens create a low-flow shower adventure, and it intuitively teaches circuit logic, problem solving and resource allocation. It also saves water with AquaStruct’s 2.5 gallons per minute earth-friendly AlphaValve. Launch date: August 2007.