DOW FILMTEC XLE-440i Membrane

Product Description

DOW FILMTEC XLE-440i Elements are ideal for reverse osmosis plant managers and operators dealing with controlled pre-treatment and seeking high-quality permeate water at low operating costs.


Product Active Area Feed Spacer Thickness Permeate Flow Rate Typical Stabilized Salt Rejection Minimum Salt Rejection
DOW FILMTEC Element (ft2)    (m2) Thickness (mil) (GPD)        (m3/day) (%) (%)
XLE-440I 440     41 28 14,000               53 99.0 97.0



  • The lowest pressure DOW FILMTEC™ RO element
  • Provides lower energy costs and more productivity, especially in cold waters
  • Minimizes equipment CAPEX in designs with savings in elements and pumping due to the 440 ft2 active area
  • Delivers the most effective cleaning performance, robustness and durability due to its widest cleaning pH range (1 – 13) tolerance and the support of FilmTec technical representatives



  • Industrial water demineralization
  • Production of municipal drinking water



DOW FILMTEC XLE-440i membrane Data Sheet

(1 review) Write a Review
  • 5
    Excellent deal

    Posted by Adelle C. on Apr 14th 2020

    Great customer support in handling these membranes!

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