DOW FILMTEC™ brackish water reverse osmosis membrane elements provide consistent, exceptional system performance in light industrial applications.

  • DOW FILMTEC LE-4040 delivers high performance at low pressure resulting in less energy usage and lower costs.
  • Features the thickest feed spacer (34 mil) available in the industry today to lessen the impact of fouling.
  • May be cleaned over a wide pH range (pH 1-13) for the most effective cleaning.

Elements with a hard shell exterior are recommended for systems with multiple-element housings containing three or more membranes, as they are designed to withstand higher pressure drops.

 

Permeate Flow Rate
gpd (m3/d)
Stabilized Salt Rejection
(%)
2,500 (9.5) 99.0
  1. Permeate flow rate and salt rejection based on the following test conditions: 2000 ppm NaCl, 150 psig (10.3 bar), 77°F (25°C) and 15% recovery.
  2. Flow rates for individual elements may vary +/-20%.
  3. Sales specifications may vary as design revisions take place.