Filmtec LP-4040 Element – Progressive Water Treatment
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Filmtec LP-4040 Element

Filmtec LP-4040 Element

  • $ 245.00

Dow® Filmtec™ LP-4040 delivers high quality water at low pressure operation. LP-4040 replaces many "first generation" low pressure membrane elements and will purify more water in many older systems, especially on cold water feeds. Tape-wrapped elements are built with the same high quality membranes and materials of construction as industrial elements, except for the hard outer shell, and are more economical for commercial systems with one or two elements per housing.


  • Diameter: 4"
  • Length: 40"
  • Weight: 15lbs
  • Active Membrane: 78 ft2
  • Membrane Type: Polyamide Thin Film Composite
  • Outer Shell: Tape-wrapped Fiberglass
  • Applied Pressure: 145 PSI
  • Nominal Capacity: 2900 GPD
  • Maximum Pressure: 600 PSI
  • Stabilized Salt Rejection: 99.2%


  • Maximum Operating Temperature: 113°F (45°C)
  • Chlorine Tolerance: <0.1 PPM
  • Maximum Feed Flow Rate: 14 GPM
  • Maximum Pressure Drop: 13 PSI
  • 34 mil Feed Spacer
  • pH Range, Continuous Operation: 2-11
  • pH Range, Short Term Cleaning (30min): 1-13


  • Applied pressure: 145 PSIG (10 BAR)
  • 77°F (25°C) Operating Temperature
  • 15% Permeate Recovery


  • For use in commercial water treatment systems including food service, medical and research institutions, and the hospitality industry
  • High flux results in high yields
  • High rejection provides good water quality
  • Filmtec performance and quality

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