Dow FilmTech TW30-1812-50HR membrane, dry shipped for extended shelf life.
Dow FilmTec TW30-1812-50HR membrane in original packaging ready for replacement.
Dow FilmTec TW30-1812-50HR membrane element for undersink RO systems.
Close-up of polyamide TFC surface on Dow FilmTec membrane.
Dow FilmTec TW30-1812-50HR certification label shows NSF 58 compliance.
Dow FilmTec TW30-1812-50HR membrane installed in standard 2x12 housing.
Dow FilmTec TW30-1812-50HR membrane with chlorine tolerance under 0.1 ppm.
Dow FilmTec TW30-1812-50HR high-output membrane at 50 psi performance.

Dow Filmtec

Dow FilmTec TW30-1812-50HR High Rejection RO Membrane – 50 GPD for Undersink Systems (Replaces TW30-1812-50)

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$40.80

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Why customers choose TaskHolt Tools

Dow FilmTec TW30-1812-50HR High Rejection RO Membrane is designed for undersink reverse osmosis systems, offering reliable filtration for everyday drinking water. With a 50 GPD rating and a compact 1.75 x 11.74 inch footprint, this element fits standard housings and is a straightforward upgrade for compatible RO setups. It replaces the TW30-1812-50 model and is built by Dow FilmTec, a brand known for advanced membrane technology and automated fabrication.

Key benefits

  • Polyamide Thin Film Composite membrane for strong contaminant rejection with solid flow.
  • Rated at 50 psi and may purify about 20 percent more water than 60 psi rated elements.
  • Shipped dry for convenient handling and long shelf life.
  • Free chlorine tolerance under 0.1 ppm helps protect the membrane when prefilters are used.
  • NSF ANSI Standard 58 certified for home drinking water applications.
  • Designed to fit standard undersink housings: 1.75 inch diameter by 11.74 inch length in typical 2x12 vessels.

Performance and compatibility

When installed in the right system, the TW30-1812-50HR supports solid daily water production. Real-world output depends on water pressure, temperature, and chlorine levels, so results may vary.

  • Chlorine management matters; if municipal water contains residual chlorine, a carbon or sediment prefilter is highly recommended to protect the membrane.
  • It is NSF/ANSI 58 certified, aligning with home drinking water safety standards.

Installation tips and care

Handle the element with clean, dry hands and follow the replacement procedure for your RO system. The dry shipping format helps with shelf life, while correct orientation and seating in the housing ensure proper seal and service.

Consider this TW30-1812-50HR as a durable upgrade path for consistent filtration. Note that water chemistry and installation specifics will influence performance.

FAQ

Q: What is the daily production rate of the Dow FilmTec TW30-1812-50HR membrane?

A: Rated at 50 GPD under typical conditions; actual output varies with pressure and temperature.

Q: Is this membrane compatible with standard undersink RO systems?

A: Yes. It fits standard 1.75 x 11.74 inch elements and 2x12 pressure vessels.

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