CSM 50 Gallon Membrane

CSM RE1812-50
Reverse Osmosis Membrane, 50 Gallons per Day. Suitable replacement for most 50 gallons per day reverse osmosis water filters.

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£22.94 inc-VAT


This CSM RE1812-50 Reverse Osmosis, 50 Gallons per Day Membrane can replace most 50 GPD RO water filters.

CSM Household RO membrane removes most of the harmful substances in drinking water. Examples are, Carcinogen, THMs (Trihalomethanes), heavy metal ions, bacteria and virus in drinking water.

Operating conditions:

- Elements contain preservative solution, therefore the permeate from the first hour of operation should be discarded, to flush the protective solution in the elements.

- Keep elements moist at all times after initial wetting

- CSM elements should be immersed in a protective solution during storage, shipping or system shutdowns to prevent biological growth and frost damage.

If the operating conditions are not followed appropriately , we can not honor the warranty of the element as you will be unecessarily reducing the life of the filter.

The standard storage solution contains one weight percent sodium bisulfite or sodium metabisulfite (food grade). For short term storage of one week, one weight percent sodium metabisulfite solution is adequate for inhibiting biological growth.


  • Membrane Type : Thin-film Composite
  • Membrane Material : PA (Polyamide)
  • Membrane Surface Charge : Negative
  • Element Configuration : Spiral-Wound, Tape wrapping

Technical Information

  • Max. Operating pressure 125 psi (0.86 MPa)
  • Max. Feed flow rate 2 gpm (0.45 m3/hr)
  • Max. Operating temperature 113 oF (45 oC) Operating pH range 3.0 ~ 10.0
  • Max. Turbidity 1.0 NTU
  • Max. SDI (15 min) 5.0
  • Max. Free Chlorine concentration 0.1 mg/L
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