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Reverse Osmosis Membrane 10 inch – 50 GPD, 75 GPD, 100 GPD, 150 GPD

(61 customer reviews)

£21.72 – £43.08 including VAT

Reverse Osmosis membranes are the heart of every Reverse Osmosis system. To ensure that our systems perform effectively and  produce high quality pure water, RO-Man only use the excellent quality Reverse Osmosis membranes. The membrane works by forcing water through a semi-permeable membrane. This will allow pure water to pass through while rejecting many contaminants including viruses, bacteria, heavy metals and fluoride. Reverse Osmosis is the best method to properly remove fluoride from water. The contaminants will be removed to the waste with the system producing pure water.

The Reverse Osmosis membrane will remove an average 97-99% of tap water contaminants. We only use high quality thin film composite membranes in our systems. These membranes are 100% dry membrane maximizing shelf life with high rejection stability at high input TDS.

When replacing a membrane we recommend that you change the flow restrictor at the same time. Flow restrictors have a similar lifespan and this will further ensure that your membrane will maintain the correct recovery and rejection ratios which affects performance and quality of the water produced. Reverse Osmosis membranes perform best when they are used fresh. We recommend that membranes are not stored but purchased fresh when needed.

Our membranes will fit in most standard Reverse Osmosis systems and housings.

 

SKU: MEM Category: Tags: , , , , , ,

Description


Important Operating Information

  • Elements must be kept sealed and moist when in storage. Drying out will irreversibly damage the membranes.
  • Prevent elements from freezing, or being exposed to direct sunlight.
    Elements are shipped in sealed bags and contain a preservative solution of 1-2% (by weight) of sodium meta bisulphate (Food Grade).
  • Discard the permeate from the first hour of operation.
  • Permeate flow varies with feed water temperature. Divide the rated flow with the correction factor below to get the permeate flow at that temperature.
  • Membrane Elements for residential systems have a one year warranty from the date of shipment. Warranty is void for membrane elements fouled by suspended solids, precipitates or biological growth. Membrane warranty is also void if the membrane elements are improperly used, poorly maintained or improperly stored.
  • Warranty claims for membrane elements must be made as detailed in Membrane Warranty Claims Bulletin.

Installation Instructions: 

  1. Use the cable tie provided to remove your old membrane.
  2. Apply a small amount of silicone gel, or alternatively petroleum jelly, to the O-rings for easier installation.
  3. Insert your new membrane into the housing, with the two O-rings first, until you feel this seated correctly.
  4. Once the membrane is seated correctly, make sure the housing O-ring is moist.
  5. Screw the housing cap back onto the housing.

 Specifications:

  • Membrane type: Thin Film Composite
  • Membrane material: PA (Polyamide)
  • Sizes: 10 Inch
  • Maximum Water Temp: 113°F or 45°C
  • Average Rejection ration: 98% (200ppm down to 4ppm under ideal conditions)
  • Maximum Operating Pressure: 125 psi (0.86 MPa)
  • Life Span: Up to 2 years
  • Maximum feed flow rate: 2 gpm
  • Maximum feed water turbidity: 1 NTU
  • Maximum feed water silt density index: (15 min) 5
  • Chlorine tolerance: 0
  • Feed water pH range: 2-11
  • Minimum brine flow to permeate flow ratio: 4:1

 

Ion % Rejection   Ion % Rejection
Calcium 93-99 Bromide 90-95
Sodium 92-98 Phosphate 95-98
Magnesium 93-98 Cyanide 90-97
Potassium 92-96 Sulfate 96-99
Manganese 96-98 Thiosulfate 96-98
Iron 96-98 Silicate 92-95
Aluminum 96-98 Silica 90-98
Copper 96-99 Nitrate 90-95
Nickel 96-99 Boron 50-70
Cadmium 93-97 Borate 30-50
Silver 93-96 Fluoride 92-95
Zinc 96-98 Polyphosphate 96-98
Mercury 94-97 Orthophosphate 96-98
Hardness Ca&Mg 93-97 Chromate 85-95
Radioactivity 93-97 Bacteria 99+
Chloride 92-98 Lead 95-98
Ammonium 80-90 Arsenic 50-90

 

Dimensions

Size Total Length Membrane Length Diameter
Inches CM Inches CM Inches CM
50 GPD 11.63 29.5 10.0 25.0 1.8 4.6
75 GPD 11.63 29.5 10.0 25.0 1.8 4.6
100 GPD 11.63 29.5 10.0 25.0 1.8 4.6
150 GPD 11.75 29.85 10.0 25.4 1.95 5.0

 

Temperature Correction
°C °F Factor
5 41.0 2.58
6 42.8 2.38
7 44.6 2.22
8 46.4 2.11
9 48.2 2.00
10 50.0 1.89
11 51.8 1.78
12 53.6 1.68
13 55.4 1.61
14 57.2 1.54
15 59.0 1.47
16 60.8 1.39
17 62.6 1.34
18 64.4 1.29
19 66.2 1.24
20 68.0 1.19
21 69.8 1.15
22 71.6 1.11
23 73.4 1.08
24 75.2 1.04
25 77.0 1.00
26 78.8 0.97
27 80.6 0.94
28 82.4 0.91
29 84.2 0.88
30 86.0 0.85

Notes:

99% of Membranes come from the US and are Calibrated in US Gallons. Performance specifications based on:

  • 500 ppm tap water,
  • 65 psi (0.47 MPa) applied pressure,
  • 77°F (25°C) feed water temperature,
  • feed water pH 7
  • Recovery Element permeate flow may vary ± 15%

System and Membrane Warranty

All our systems and membranes come with a 1 year warranty from the date of purchase. This warranty excludes expendable filter cartridges and resins.  Read more here.


Additional information

Membrane Size

50 GPD, 75 GPD, 100 GPD, 150 GPD

61 reviews for Reverse Osmosis Membrane 10 inch – 50 GPD, 75 GPD, 100 GPD, 150 GPD

  1. KEVIN R. (verified owner) –

    Excellent quality product

  2. LEROY W. (verified owner) –

    All worked first time no issues

  3. John H. (verified owner) –

    Great products at a great price

  4. Andrew (verified owner) –

    Best quality

  5. brendon bliss (verified owner) –

    Quality gear . No fakes

  6. John (verified owner) –

    Good.

  7. william james (verified owner) –

    good product

  8. DAVID CROPPER (verified owner) –

    Simply works.

  9. Graham Perkins (verified owner) –

    Excellent prices

  10. Terry Williams (verified owner) –

    Good quality served us well that’s why we re-ordered a new set

  11. DAVID (verified owner) –

    Good quality and lasts a good amount of time.

  12. ATANAS P. (verified owner) –

    Bad comunication with suplier

    • roman admin (store manager) –

      We have had no communication from you. Should you have any queries regarding your order, please contact us at helpdesk@ro-man.com and we will be happy to assist you. Regards. RO-Man Team

  13. Andrew Hodson (verified owner) –

    Just what I needed.

  14. Stephen (verified owner) –

    I picked the wrong size so will need to reorder but the parts are excellent quality

  15. Phillip Hollier (verified owner) –

    Competitive price

  16. Seamus M. (verified owner) –

    Bought slightly cheaper in the past but I get better results with these from RO-MAN

  17. lee d. (verified owner) –

    Great value and great quality

  18. Neil Stevenson-Guy (verified owner) –

    Replaced a 13 year old one which didn’t really need replaced!

  19. CHRIS R. (verified owner) –

    High quality RO membrane.

  20. Jason Thomas (verified owner) –

    Great product

  21. Mark Moody (verified owner) –

    No problems – as always

  22. Stephen M. (verified owner) –

    Exactly what was required

  23. Anonymous (verified owner) –

    great product

  24. David Campling (verified owner) –

    Tremendous

  25. John Sims (verified owner) –

    As above

  26. Anonymous (verified owner) –

    Great product

  27. Dan Hague (verified owner) –

    Good quality

  28. andrew markham (verified owner) –

    excellent product

  29. Jason Thomas (verified owner) –

    Got exactly what I ordered. Thanks

  30. Jason Thomas (verified owner) –

    Works as expected

  31. Stephen Handley (verified owner) –

    As Ordered

  32. Christopher L. (verified owner) –

    Excellent quality.

  33. patrick garfoot (verified owner) –

    Great quality

  34. Sarah Bentley (verified owner) –

    Quality products ?

  35. Bill O’Callaghan (verified owner) –

    Looks good quality

  36. John Roddy (verified owner) –

    Great value for money

  37. Raymond T. (verified owner) –

    I’ve been buying from RO-Man for nearly 20 yrs. My 5-stage domestic RO system with TDS meter works great. When I tried cheaper replacement cartridges, membranes (identical looking) etc. from ebay etc. my TDS meter consistently indicated much poorer quality water – LESSON LEARNT. Now I buy conusmables ONLY from ro-man as quality and performance is reliable and predictable. Thanks to the guys at RO-MAN.

  38. Malcolm G. (verified owner) –

    Great service as always

  39. andrew markham (verified owner) –

    excellent quality and value

  40. Vivienne J. (verified owner) –

    Good product

  41. Terry Williams (verified owner) –

    Excellent they even supplies a plastic tie to pull the old one out

  42. Anonymous (verified owner) –

    Good

  43. Richard H. (verified owner) –

    Works as it should

  44. Anonymous (verified owner) –

    Great

  45. michael heaney (verified owner) –

    Great….

  46. James Pepper (verified owner) –

    Works and fits perfectly

  47. Basil (verified owner) –

    Excellent, while I’ve not used the membrane as yet I have no reason base on my previous experience and quality of good and service to suggest otherwise.

  48. Roger F. (verified owner) –

    good

  49. Ian Burrell (verified owner) –

    Does the job 100 %

  50. john tyrrell (verified owner) –

    Quality

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