Filmtec Reverse Osmosis (RO) Membrane Series

  • Most Popular Brand In RO Membrane – Made In USA
  • FILMTECTM reverse osmosis (RO) membrane elements for home drinking water are the industry’s most reliable. Advanced membrane technology and automated fabrication allow these elements to deliver consistent performance that equipment suppliers, water treatment dealers and residential customers can rely on. FILMTEC elements are shipped dry for convenient handling and long shelf-life. These elements are NSF/ANSI Standard 58 listed.
  • Equipment suppliers can take advantage of FILMTEC’s Standard 58 listing and participation in the NSF Data Transfer Protocol to reduce costs for reduction claims for their systems. FILMTEC home drinking water elements are rated a 50 PSI and will purify about 20% more water than competitive elements rated at 60 PSI (please see below reference charts for more information).
    FILMTEC Drinking Water Elements use Automated ManufacturingThe industry’s most consistent and reliable productFILMTEC Drinking Water Elements Contain FILMTEC MembraneProvides proven world leadership in reverse osmosis technology
    Provides consistent high quality water

    FILMTEC Elements Have NSF Component and Performance Certification

    NSF International is a not-for-profit private company. Their mission is dedication to public health safety and protection of the environment by developing standards, providing education and providing superior third-party conformity assessment services.
    Assures safe water to the consumer
    Simplifies NSF approvals of drinking water systems
    NSF performance approvals of FILMTEC elements are transferable
    Saves original equipment manufacturers (OEM) time
    Saves OEM’s money
    Reduces OEM’s effort
    Assures performance and reliability of drinking water systems

Product Code Permeate GPD Salt Rejection % Size (inch)
TW30-1812-36 36 98.0 % 1.8″ X 12″
TW30-1812-50 50 98.0 % 1.8″ X 12″
TW30-1812-75 75 98.0 % 1.8″ X 12″
TW30-1812-100 100 98.0 % 1.8″ X 12″
Product Code Permeate GPD Salt Rejection % Size (inch)
TW30-2521 325 99.5 % 2.5″ X 21″
TW30-2540 850 99.5 % 2.5″ X 40″
TW30-4021 900 99.5 % 4.0″ X 21″
TW30-4040 2400 99.5 % 4.0″ X 40″
Product Code Permeate GPD Salt Rejection % Size (inch)
BW30-2540 850 99.5 % 2.5″ X 40″
BW30-4040 2400 99.5 % 4.0″ X 50″
BW30-400 10500 99.5 % 8.0″ X 40″
BW30-400i 11500 99.5 % 8.0″ X 40″
1. Permeate flow and salt rejection based on the following test conditions:
250 PPM softened tap water, 77 Fahrenheit (25 degree C), 15% recovery and the specified applied pressure.2. Minimum salt rejection is 96.0%.3. Permeate flows for individual elements may vary +/-20%.OPERATING LIMITS:Membrane Type: Polyamide Thin-Film Composite
Maximum Operating Temperature: 113 Fahrenheit (45 degree C)
Maximum Operating Pressure: 300 PSIG (21 bar)
Maximum Feed Flow Rate: 2.0 GPM (7.6 LPM)
H Range, Continuous Operation: 2 – 11
pH Range, Short-Term Cleaning (30 min.): 1 – 12
Maximum Feed Silt Density Index (SDI) : 5
Free Chlorine Tolerance: < 0.1 PPM
* Maximum temperature for continuous operation above pH 10 is 95°F (35°C).
* Refer to Cleaning Guidelines in specification sheet 609-23010.
* 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, FILMTEC recommends removing residual free chlorine by pretreatment prior to membrane exposure. Please refer to technical bulletin 609-22010 for more information.


The first full tank of permeate should be discarded. Do not use this initial permeate for drinking water or food preparation.
Keep elements moist at all times after initial wetting.
If operating limits and guidelines given in this bulletin are not strictly followed, the limited warranty will be null and void.
To prevent biological growth during prolonged system shutdowns, it is recommended that membrane elements be immersed in a preservative solution.
The membrane shows some resistance to short-term attack by chlorine (hypochlorite). Continuous exposure, however, may damage the membrane and should be avoided.
The customer is fully responsible for the effects of incompatible chemicals and lubricants on elements. Their use will void the element limited warranty.

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