The Hydra di Series is a pre-assembled cartridge system that provides deionized water using a staged filtration process. Water purification is provided using a 3-step process. Stage (1) removes particles greater than 5 micron, chlorine, and organics. Stages (2 & 3) are deionizers designed to remove dissolved minerals. The Hydra di Series includes all cartridges and resistivity light for a total turnkey system. The Hydra di high purity system uses low odor mixed bed cartridges for applications requiring better than 10 megohm water quality. For less corrosive applications, the Hydra di high capacity configuration provides water quality better than 50 kilograms. This is ideal for scale reduction and non-stainless steel piping systems. System includes cartridges, water quality indicating light, Outlet Valve and tubing. All housings are preassembled on a wall mounting bracket.