ExcellPureRO membranes are uniquely designed for high rejection of silica. Achieving low silica values from the RO is important for many applications, including providing feed water for electrodeionization (EDI) systems. We have matched these SXR™ membrane elements to specific Electropure EDI modules.

Standard and low energy (LE) reverse osmosis (RO) membranes do not reject silica well, often only 98%. Special membranes have been developed to reject silica over 99.2%.

SnowPure recommends using Avista Vitec^® 4000 with ExcellPureRO membranes to prevent silica scaling. With Vitec^® 4000, you can achieve up to 325 ppm SiO₂ in the RO concentrate.