PWG RO MEMBRANES Low Energy 4021 Membrane PWG’s range of RO membranes has been developed with energy efficiency in mind, whilst maintaining high production and rejection rates to produce excellent quality RO water. As a low energy membrane it can operate at pressures as low as 6.9 bar or as high as 20.7 bar, making it a suitable alternative to Oltremare LOW1-4021, Hydranautics ESPA1-4021, Axeon HF1-4021 and Dow/Filmtec LE-4021 membranes. Why Choose PWG 4021 RO Membranes? Suitable alternative to other 4021 RO membranes Designed for use in light commercial systems High operating temperature up to 45⁰C Supplied tape wrapped with brine seal Compatible with most 4021 housings Compatible Products:Commercial RO SystemsStainless Steel RO Membrane Housings Product Resources:PWG RO Membranes Data Sheet → Reverse Osmosis Solutions We’re pleased to offer a comprehensive range of reverse osmosis solutions, from full systems to replacement membranes and accessories. Can’t find exactly what you’re looking for? Get in touch with a member of our team today. Browse all Reverse Osmosis solutions →