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PWG RO Membrane 1812


Our PWG 1812 Reverse Osmosis Membranes are suitable for use in small RO systems that require 1812 (or 1.8” x 12”) membranes. These membranes offer a capacity of up to 100 gallons per day (380 litres) and can last up to 5 years with the right pre-treatment and good system maintenance. Indicators that your membrane should be replaced include an increase in total dissolved solids (TDS) or a drop in water production compared to when it was initially installed.

Why Choose Our PWG RO Membrane 1812?

  • Suitable retrofit for other 1812 RO membranes
  • Can be run off mains water pressure (3 bar)
  • Production rates of up to 380 litres per day
  • Average rejection rate of 98%

Need help with our PWG RO Membranes? Give us a call on 01622 933 853


1812 Membranes are commonly found in Reverse Osmosis systems in homes, offices, laboratories and aquatics applications. Our PWG membranes are supplied as standard in some of our domestic systems and serve as a go-to alternative for other systems that feature the same size membranes. The membranes are easy to install and change and are supplied individually packaged. They are compatible with most domestic and small aquarium RO systems.

Key Product Information

  • Alternative to other market leading 1812 membranes
  • High operating temperatures of up to 45⁰C
  • Supplied tape wrapped and with brine seal
  • Designed for use in small RO systems
  • Suits most 1812 membrane housings

Related Products

Need help with our PWG RO Membranes? Give us a call on 01622 933 853


Flow Rates

100 Gallons Per Day (454 Litres)
75 Gallons Per Day (340 Litres)
50 Gallons Per Day (189 Litres)


1.8" x 12"

Average Rejection Rate


Max Operating Temperature


Minimum Operating Pressure

3 Bar

pH Range


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