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AG4021TF Desal Commercial Reverse Osmosis Membrane

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AG4021TF Desal Commercial Reverse Osmosis Membrane

Save 14% (MSRP: $270.24)

Quick Overview

Fits GE Osmonics pressure vessels that accept 4-inch x 21-inch membranes
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The Desal-AG4021TF reverse osmosis membrane is an industry standard element for brackish water desalination. This membrane combines high impurity rejection with a low operating pressure, making it ideal for a variety of commercial and residential applications. Cross flow filtration sweeps away the concentrate stream to reduce the maintenance cost and extend the membrane life. This element features male end connections, 28 mil feed spacers, and tape outer wrap.

  • Proprietary thin film membrane features high flux and outstanding sodium chloride rejection
  • Ideal for brackish water desalination for up to 1050 gallons per day of filtered water
  • Considered an industry standard for applications that require high rejection and low pressure (200 psig)
  • Provides significant energy savings and greater RO efficiency with cross flow filtration to prolong the life of the element
  • Genuine OEM Product


Package Qty 1
Used In Brands Desal
Manufacturer's Id AG4021TF
UPC 799705701236
Media Thin Film Composite
Primary Filter Media Semi-Permeable Membrane
Filter Life (months) 24 months
Maximum Operating Pressure (psi) 450
Maximum Temperature (°F) 122
Chlorine Tolerance 1,000 ppm-hrs
Additional Information Operating pH Range: 4.0 - 11.0 (Optimum Rejection at 7.0 - 7.5), Cleaning pH Range: 2.0 - 11.5, Max Pressure Drop: 6 psig per element, 36 psig per vessel


Reduces the following contaminants:
  • The DESAL-AG4021TF does not reduce fluoride.

The DESAL-AG4021TF is comparable with the following part numbers