Customflo Water System is a new complete system that enables the creation of any desired flow patterns in a ny size aquarium tank and with any make or filter size. By assembling a variety of unique parts in multiple ways, the Customflo is only limited by the imagination. It can be used on large or small aquariums or to upgrade any existing system. No holes are required since the over-the-wall assembly can be swiveled to allow close tank wall positioning. The package provides many installation suggestions and includes Control Valves, Spray Bars, Suction Cups, Adapters, Hydro Jet, Ball/Socket Assembly, Piping and a huge variety of fittings. Features: - Over Wall Assembly - Swivels to allow close tank wall positioning; Suction cups fasten to inside and outside for secure fit - Control Valve - Controls water flow; Valve rotates and locks in desired position; Can be mounted vertically or horizontally for custom plumbing; allow aquarist to manipulate flow into any pattern on suction or return side; Can be attached to spray bar, venturi hydro jet, ball socket assembly or suction screen. - Hydro Jet - Allows mix of air with water in any location of aquarium; Includes suction cup adapter to attach air line tubing to tank wall. - Spray or Solid Pipe - Use above or below water on return or suction side; Create own design using elbows, T's and couplings with special suction cup adapters. - Black Pipe & Fittings - Blends into tank appearance. - Pipe/Hose Adapter - For 1/2" or 3/4" flexible tubing. - Suction Starter - Open cap to prime suction line. - Slider & Suction Cup - Swivels to allow close tank wall positioning.