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  • SKUTW30-2026
  • Price
  • Manufacturer DOW Filmtec


DOW FilmTec Membrane Elements

DOW FILMTEC™  TW30-2026 Brackish Water Reverse Osmosis Membrane Element

DOW FILMTEC TW30-2026 Elements produce high quality water for small commercial systems. DOW FILMTEC TW30-2026 elements are tape-wrapped. In addition to high quality water and low energy costs, DOW FILMTEC membranes also deliver savings by providing long lasting and reliable performance.  DOW FILMTEC TW30-2016 element has dobule o-rings on each end of the permeate tube and fits nominal 2.0 inch pressure vessels.

DOW FILMTEC Brackish Water Reverse Osmosis Elements can separate salts from water and are produced with an automated fabrication process for precision, consistency, and reliability. DOW FILMTEC RO membranes build on a tradition of leadership in the thin-film composite membrane industry and meet the challenges of higher rejection in lower-pressure operations.

DOW FILMTEC TW30-2026 is FDA – 21 CFR 177.2550; Food and Drug Administration Compliant.

Product Specifications


FilmTec Membranes are FDA Compliant     Genuine DOW FilmTec Membrane Element   



Specifications for TW30-2026

FilmTec Product: TW30-2026
FilmTec Part Number: 80635
Size (Approximate): 2" Dia. x 26"L
Flow Rate: 220 gpd (0.83 m³/d)
Applied Pressure: 225 psig (15.5 bar)
Stabilized Salt Rejection: 99.5%
Active Surface Area: 7 Sq. Ft.
Single Element Recovery: 10%
Exterior: Tape-Wrapped
Membrane Type:
Polyamide Thin-Film

Permeate flow and salt rejection based:  2,000 ppm NaCl feed stream, 77°F, 10% recovery, 225 psig.

Operating Limits for TW30-2026

Maximum Operating Temperature: 113°F (45°C)
Maximum Operating Pressure: 600 psig (41 bar)
Maximum Pressure Drop: 13 psig (0.9 bar)
Maximum Feed Flow Rate: 5 gpm (1.1m³/h)
pH Range, Continuous Operation*: 2-11
pH Range, Short-Term Cleaning**: 1-13
Maximum Feed Silt Density Index: 5
Fere Clorine Tolerance***: <0.1ppm

*Maximum temperature for continuous operation above pH 10 is 95°F
**Refer to cleaning guidelines.
***Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, Dow recommends removing residual free chlorine by pretreatment prior to membrane exposure.

Related Products for use with TW30-2026

PV2026SSAU-316 Stainless Steel Membrane Housing Pressure Vessel for 2" x 26" Membrane Element
H-C111DC O-Ring Lubricant, DOW CORNING High Grade Silicone Lubricant suited for RO Membrane O-Rings

Benefits of DOW FilmTec Commercial RO Membranes

  • Reverse Osmosis water treatment removes up to 99% of total dissolved solids from water.
  • High flux results in high yields
  • High rejection provides good water quality
  • FilmTec performance and quality

Common Applications for FilmTec TW30-2026 Commercial RO Membranes:

  • Commercial Water Treatment Systems
  • Food Service
  • Medical and Research Institutions
  • Hospitality Industry

Physical Dimensions of DOW FilmTec TW30-2026

DOW FilmTec Commercial RO Membrane Drawing  
A 26.0 (660)
B 1.18 (30)
C 0.68 (17)
D 1.8 (46)

TW30-2026 Fits nominal 2x26 size pressure vessels.

For more information, please visit this products webpage.

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