CSM RE4040-BLF 2500 GPD Brackish Water Membrane 4 x 40


SKU: RE4040-BLF Category:


The CSM RE4040-BLF 2500 gpd brackish water membrane is high productivity RO membrane element with extended area for brackish water. They can be used in multiple membrane systems to process or treat, municipal, industrial, or commercial water. CSM brackish water high rejection membrane elements are most widely used because of their ability to sustain excellent performance. CSM membrane elements have a high chemical durability which prevents declining of their performance after CIP.


  • Permeate Flow Rate: 2500 gallons per day
  • Membrane Type: Thin-film Polyamide Composite
  • Applied Pressure: 100 psi
  • Dimensions: 4″ x 40″
  • Chlorine Tolerance: 0 ppm
  • Maximum Operating Temperature: 113° F
  • Applications: Tap Water, Brackish Water, Well Water, Surface Water

CSM RE4040-BLF Technical Information

CSM RE4040-BLF 2,500 GPD Brackish Water Membrane Specifications

Good Replacement For:

Manufacturer Model
Dow Filmtec XLE-4040
Hydranautics ESPA4-4040
Axeon HF4-4040
Axeon HF5-4040

* Replacement models are assumed to be equivalent if nominal flow is within 15% and rejection is within 0.2% for same test conditions

Additional information

Weight 13 lbs
Dimensions 40 × 4 × 4 in