Liquagen 5 Stage RODI Filter sku-18310424363 740885052496

This preassembled Liquagen reverse osmosis and deionization system is listed under All Fish Tanks and Supplies as SKU sku-18310424363, UPC 740885052496. The 5-stage unit is intended to remove small impurities, including chlorine in city water, for freshwater, saltwater and reef aquariums, as well as laboratory testing and other uses requiring highly purified water.

Its stages are a 5-micron polypropylene sediment filter, UDF activated carbon, coconut carbon, an RO membrane and an inline DI canister. A garden hose, tubing and connections are included. A storage tank installation requires an additional auto shut-off valve and check valve. The fittings are air-leak tested, and the system has a 2-year manufacturer warranty and lifetime customer support.

The sediment filter has a 3-layer gradient design that the listing describes as 3x more efficient than a non-gradient filter. The spiral-wound polyamide membrane, described as meeting ANSI Standard 58 material requirements, has a 75-gallon-per-day capacity and operates at pressures up to 125 psi. Its film is listed as GE USA.

The DI stage treats remaining dissolved solids; the listing claims an output of 0 TDS.