Reverse Osmosis

Finerfilters Ltd. is one of the leading suppliers of Reverse Osmosis products in the UK. RO is one of the highest precision filtration methods available for drinking water, capable of removing up to 99% of waterborne contaminants. RO can be used in numerous applications where you need the purest water possible.

We supply everything you need to install and maintain a reverse osmosis system, our customer service team offer exceptional knowledge and advice to help you decide which is the right system for you, and we will continue to support you long after installation.

Reverse Osmosis SystemsReverse Osmosis Systems

Reverse Osmosis Systems

Reverse Osmosis Replacement FiltersReverse Osmosis Replacement Filters

Replacement Filters

Reverse Osmosis MembranesReverse Osmosis Membranes

RO Membranes

RO Booster Pumps and RO Booster Pump Upgrade KitsRO Booster Pumps and RO Booster Pump Upgrade Kits

Booster Pumps and Kits

RO Taps and FaucetsRO Taps and Faucets

RO Taps / Faucets

RO Spares and AccessoriesRO Spares and Accessories

Spares & Accessories

Reverse Osmosis

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Items 1-48 of 154

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Category
  1. Systems 34 item
  2. Replacement Filters 48 item
  3. Membranes 19 item
  4. Booster Pumps & Upgrade Kits 10 item
  5. Reverse Osmosis Taps 6 item
  6. Spares & Accessories 34 item
Price
  1. £0.00 - £99.99 127 item
  2. £100.00 - £199.99 20 item
  3. £200.00 - £299.99 6 item
  4. £300.00 and above 1 item
Brand/Manufacturer
  1. DMFit 7 item
  2. E-Chen 3 item
  3. EZ Digital 1 item
  4. Finerfilters 114 item
  5. Grand Forest 3 item
  6. HM Digital 1 item
  7. John Guest 7 item
  8. LG 1 item
  9. Purolite 2 item
  10. Spectrum 5 item
  11. Tulsion 4 item
  12. Vontron 8 item
Fitting Type
  1. Shut Off Valve 2 item
  2. Tap Adapter 4 item
  3. Equal Straight 4 item
  4. Reducing Straight 1 item
  5. Equal Elbow 1 item
  6. Two Way Divider Y Piece 1 item
Product Type
  1. 10" Standard 2 item
  2. 20" Jumbo 3 item
  3. In Line Water Filter 3 item
  4. 3 Stage Compact 7 item
  5. 3 Stage 10" Drop In 6 item
  6. 4 Stage 10" Drop In 14 item
  7. 4 Stage Compact 7 item
  8. 4 Stage Domestic 4 item
  9. 5 Stage Domestic 4 item
  10. 6 Stage Domestic 5 item
Item Type
  1. Flow Restrictor 1 item
  2. LLDPE Tubing 2 item
  3. Pressure Gauge 1 item
  4. Pressure Switch 1 item
  5. RO Storage Tank 3 item
  6. TDS Meter 2 item
  7. 3 Way Tap 1 item
  8. Baseball Tap 1 item
  9. Chrome Tap 1 item
  10. Nickel Tap 1 item
  11. Aquarium Reverse Osmosis 24 item
  12. Domestic Reverse Osmosis 13 item
  13. Dental Reverse Osmosis 8 item
  14. 20" Jumbo Housing 3 item
  15. 3 Stage Aquatic Filter Pack 6 item
  16. 4 Stage Aquatic Filter Pack 6 item
  17. 4 Stage Domestic Filter Pack 1 item
  18. 6 Stage Domestic Filter Pack 1 item
  19. Membrane Housing 5 item
Main Product Tag
  1. Fittings 12 item
  2. Replacement Filter Pack 14 item
  3. Reverse Osmosis 49 item
Connection Type
  1. Push Fit Mount 4 item
  2. Drop In 12 item
  3. 1/4" Female Ports 2 item
  4. 1" Female Ports 3 item
  5. 1/4" Push Fit 15 item
  6. 3/4" Female BSP x 1/4" Push Fit 2 item
  7. 1/4" Male BSPT x 1/4" Push Fit 2 item
  8. 1/4" Female BSP x 1/4" Push Fit 1 item
  9. Hozelock Type Fittings 1 item
  10. 7/16" UNS x 1/4" Push Fit 1 item
  11. 1/4" BSP x 3/4" Push Fit 1 item
Micron Rating
  1. 0.0001 Micron 20 item
  2. 5 Micron 3 item
  1. Finerfilters Long Reach Chrome Lever Water Filter Tap
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    Finerfilters Long Reach Chrome Lever Water Filter Tap
    £11.99
    Rating:
    98%
    12 Reviews
  2. Finerfilters Chrome Bobble Foot Water Filter Tap - Fits All Water Filter Systems
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    Finerfilters Chrome Bobble Foot Water Filter Tap - Fits All Water Filter Systems
    £14.99
    Rating:
    100%
    2 Reviews
  3. John Guest CI320816FS ¦ 3/4" BSP Female x 1/4" Push Fit ¦ Tap Adaptor
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    John Guest CI320816FS ¦ 3/4" BSP Female x 1/4" Push Fit ¦ Tap Adaptor
    £7.49 As low as £4.19
    Rating:
    93%
    3 Reviews
  4. John Guest CI321216FS ¦ 3/4 Female BSP x 3/8 Push Fit
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    John Guest CI321216FS ¦ 3/4 Female BSP x 3/8 Push Fit
    £7.99 As low as £4.79
    Rating:
    100%
    1 Review
  5. John Guest 1/4" LLDPE Tubing - 150M Coil - White
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    John Guest 1/4" LLDPE Tubing - 150M Coil - White
    £46.99 As low as £39.99
    Rating:
    100%
    1 Review
  6. John Guest 1/4" LLDPE Tubing - 150M Coil - Blue
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    John Guest 1/4" LLDPE Tubing - 150M Coil - Blue
    £46.99 As low as £39.99
    Rating:
    100%
    1 Review
  7. John Guest 1/4" LLDPE Tubing - 150M Coil - Red
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    John Guest 1/4" LLDPE Tubing - 150M Coil - Red
    £46.99 As low as £39.99
    Rating:
    100%
    1 Review
    Out of stock
  8. LG Premium Reverse Osmosis Membrane 50GPD Gallons Per Day
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    LG Premium Reverse Osmosis Membrane 50GPD Gallons Per Day
    £24.99
    Rating:
    100%
    1 Review
    Out of stock
  9. Deluxe Modern 3 Way Chrome Water Filter Tap - Tri-Flow Tap Allows for Hot, Cold & Filtered Drinking Water
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    Deluxe Modern 3 Way Chrome Water Filter Tap - Tri-Flow Tap Allows for Hot, Cold & Filtered Drinking Water
    £69.99
    Rating:
    97%
    2 Reviews
  10. Finerfilters Long Reach Ceramic Valve Quarter Turn Water Filter Tap
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    Finerfilters Long Reach Ceramic Valve Quarter Turn Water Filter Tap
    £19.99
  11. Swan Neck Chrome RO & Water Filter Tap by Finerfilters
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    Swan Neck Chrome RO & Water Filter Tap by Finerfilters
    £19.99
    Rating:
    97%
    17 Reviews
  12. Finerfilters Luxury Water Filter Tap - Brushed Nickel Finish. Fits all 1/4" Water Filter & Reverse Osmosis Systems.
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    Finerfilters Luxury Water Filter Tap - Brushed Nickel Finish. Fits all 1/4" Water Filter & Reverse Osmosis Systems.
    £24.99
  13. 4 Stage Compact Aquarium Reverse Osmosis 100 GPD Unit with Inline DI Resin Chamber for Tropical, Marine & Discus Fish
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    4 Stage Compact Aquarium Reverse Osmosis 100 GPD Unit with Inline DI Resin Chamber for Tropical, Marine & Discus Fish
    £48.99
    Rating:
    100%
    1 Review
  14. 4 Stage Compact Aquarium Reverse Osmosis 75 GPD Unit with Inline DI Resin Chamber for Tropical, Marine & Discus Fish
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    4 Stage Compact Aquarium Reverse Osmosis 75 GPD Unit with Inline DI Resin Chamber for Tropical, Marine & Discus Fish
    £45.99
    Rating:
    100%
    1 Review
  15. 4 Stage Compact Aquarium Reverse Osmosis 50 GPD Unit with Inline DI Resin Chamber for Tropical, Marine & Discus Fish
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    4 Stage Compact Aquarium Reverse Osmosis 50 GPD Unit with Inline DI Resin Chamber for Tropical, Marine & Discus Fish
    £42.99
    Rating:
    97%
    2 Reviews
  16. 3 Stage Compact Aquarium Reverse Osmosis 100 GPD Unit for Tropical, Marine & Discus Fish
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    3 Stage Compact Aquarium Reverse Osmosis 100 GPD Unit for Tropical, Marine & Discus Fish
    £41.99
  17. 3 Stage Compact Aquarium Reverse Osmosis 75 GPD Unit for Tropical, Marine & Discus Fish
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    3 Stage Compact Aquarium Reverse Osmosis 75 GPD Unit for Tropical, Marine & Discus Fish
    £36.99
  18. 3 Stage Compact Aquarium Reverse Osmosis 50 GPD Unit for Tropical, Marine & Discus Fish
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    3 Stage Compact Aquarium Reverse Osmosis 50 GPD Unit for Tropical, Marine & Discus Fish
    £32.99
    Rating:
    100%
    1 Review
  19. 4 Stage Aquarium Reverse Osmosis 75GPD Unit - Drop In Style with Refillable DI Resin Chamber For Marine, Tropical and Discus Fish
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    4 Stage Aquarium Reverse Osmosis 75GPD Unit - Drop In Style with Refillable DI Resin Chamber For Marine, Tropical and Discus Fish
    £67.99
  20. Finerfilters In Line Push Fit Shut Off Valve Tap / Isolation Valve ¦ 1/4" x 1/4" ¦ For Water Filter Systems & Reverse Osmosis LLDPE Tubing
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    Finerfilters In Line Push Fit Shut Off Valve Tap / Isolation Valve ¦ 1/4" x 1/4" ¦ For Water Filter Systems & Reverse Osmosis LLDPE Tubing
    £2.99 As low as £1.79
  21. Finerfilters Mains Water Tap Adapter / Reducing Connector ¦ 3/4" BSP to 1/4" Push Fit
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    Finerfilters Mains Water Tap Adapter / Reducing Connector ¦ 3/4" BSP to 1/4" Push Fit
    £5.49 As low as £2.99
  22. 3 Stage 50 GPD Aquarium Compact Reverse Osmosis Replacement Water Filters by Finerfilters
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    3 Stage 50 GPD Aquarium Compact Reverse Osmosis Replacement Water Filters by Finerfilters
    £22.99
    Rating:
    87%
    1 Review
  23. Vontron 50 GPD Reverse Osmosis Membrane Element ULP1812-50
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    Vontron 50 GPD Reverse Osmosis Membrane Element ULP1812-50
    £14.99 As low as £12.99
  24. Vontron 75 GPD Reverse Osmosis Membrane Element ULP1812-75
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    Vontron 75 GPD Reverse Osmosis Membrane Element ULP1812-75
    £16.99 As low as £14.99
  25. Vontron 100 GPD Reverse Osmosis Membrane Element ULP1812-100
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    Vontron 100 GPD Reverse Osmosis Membrane Element ULP1812-100
    £21.99 As low as £18.99
  26. 4 Stage Aquarium Reverse Osmosis 10" Drop In Replacement Filters & 10" Media Pod
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    4 Stage Aquarium Reverse Osmosis 10" Drop In Replacement Filters & 10" Media Pod
    £14.99
    Rating:
    100%
    1 Review
  27. Finerfilters 5 Stage Domestic Reverse Osmosis, Replacement Filter Pack 50GPD Membrane
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    Finerfilters 5 Stage Domestic Reverse Osmosis, Replacement Filter Pack 50GPD Membrane
    £29.99
  28. Finerfilters 6 Stage Domestic Reverse Osmosis Replacement Filter Pack 50GPD Membrane
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    Finerfilters 6 Stage Domestic Reverse Osmosis Replacement Filter Pack 50GPD Membrane
    £39.99
    Rating:
    100%
    1 Review
  29. Finerfilters 4 Stage Domestic Reverse Osmosis Replacement Filter Pack with 50GPD Membrane
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    Finerfilters 4 Stage Domestic Reverse Osmosis Replacement Filter Pack with 50GPD Membrane
    £24.99
  30. 4 Stage Compact 50 GPD Aquarium Reverse Osmosis Replacement Water Filters by Finerfilters
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    4 Stage Compact 50 GPD Aquarium Reverse Osmosis Replacement Water Filters by Finerfilters
    £23.99
  31. 4 Stage Compact 75 GPD Aquarium Reverse Osmosis Replacement Water Filters & 180g DI Resin by Finerfilters
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    4 Stage Compact 75 GPD Aquarium Reverse Osmosis Replacement Water Filters & 180g DI Resin by Finerfilters
    £25.99
    Rating:
    100%
    1 Review
  32. 4 Stage Compact 100 GPD Aquarium Reverse Osmosis Replacement Water Filters & 180g DI Resin
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    4 Stage Compact 100 GPD Aquarium Reverse Osmosis Replacement Water Filters & 180g DI Resin
    £31.99
  33. 4 Stage Compact Reverse Osmosis Replacement Water Filters & 180g DI Resin by Finerfilters
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    4 Stage Compact Reverse Osmosis Replacement Water Filters & 180g DI Resin by Finerfilters
    £10.99
    Rating:
    97%
    6 Reviews
  34. EZ Digital TDS TDS-3 Meter for Testing Water Quality
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    EZ Digital TDS TDS-3 Meter for Testing Water Quality
    £9.99 As low as £8.29
  35. 4 Stage Aquarium Reverse Osmosis 100GPD Unit - Drop In Style with Refillable DI Resin Chamber For Marine, Tropical and Discus Fish
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    4 Stage Aquarium Reverse Osmosis 100GPD Unit - Drop In Style with Refillable DI Resin Chamber For Marine, Tropical and Discus Fish
    £74.99
    Rating:
    100%
    1 Review
  36. 4 Stage Domestic Reverse Osmosis 10" Drop In Replacement Filter Pack (PP, CTO, T33) by Finerfilters
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    4 Stage Domestic Reverse Osmosis 10" Drop In Replacement Filter Pack (PP, CTO, T33) by Finerfilters
    £13.99
  37. Finerfilters 5 Stage Domestic Reverse Osmosis Replacement Filter Pack
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    Finerfilters 5 Stage Domestic Reverse Osmosis Replacement Filter Pack
    £19.99
    Rating:
    98%
    3 Reviews
  38. Finerfilters 6 Stage Domestic Reverse Osmosis Drinking Water Replacement Filter Pack
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    Finerfilters 6 Stage Domestic Reverse Osmosis Drinking Water Replacement Filter Pack
    £24.99
  39. 3 Stage Aquarium Compact Reverse Osmosis Replacement Water Filters by Finerfilters
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    3 Stage Aquarium Compact Reverse Osmosis Replacement Water Filters by Finerfilters
    £9.99
  40. 4 Stage Aquarium Reverse Osmosis 10" Drop In Replacement Water Filters & 180g DI Resin by Finerfilters
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    4 Stage Aquarium Reverse Osmosis 10" Drop In Replacement Water Filters & 180g DI Resin by Finerfilters
    £10.99
    Rating:
    100%
    1 Review
  41. 3 Stage 75 GPD Aquarium Compact Reverse Osmosis Replacement Water Filters by Finerfilters
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    3 Stage 75 GPD Aquarium Compact Reverse Osmosis Replacement Water Filters by Finerfilters
    £24.49
  42. 3 Stage 100 GPD Aquarium Compact Reverse Osmosis Replacement Water Filters by Finerfilters
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    3 Stage 100 GPD Aquarium Compact Reverse Osmosis Replacement Water Filters by Finerfilters
    £28.99
  43. 4 Stage 50 GPD Aquarium Reverse Osmosis 10" Drop In Replacement Water Filters & 180g DI Resin by Finerfilters
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    4 Stage 50 GPD Aquarium Reverse Osmosis 10" Drop In Replacement Water Filters & 180g DI Resin by Finerfilters
    £23.99
  44. 4 Stage 75 GPD Aquarium Reverse Osmosis 10" Drop In Replacement Water Filters & 180g DI Resin by Finerfilters
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    4 Stage 75 GPD Aquarium Reverse Osmosis 10" Drop In Replacement Water Filters & 180g DI Resin by Finerfilters
    £25.49
  45. 4 Stage 100 GPD Aquarium Reverse Osmosis 10" Drop In Replacement Water Filters & 180g DI Resin by Finerfilters
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    4 Stage 100 GPD Aquarium Reverse Osmosis 10" Drop In Replacement Water Filters & 180g DI Resin by Finerfilters
    £31.99
    Rating:
    100%
    2 Reviews
  46. Pressure Gauge for Reverse Osmosis Systems with 1/4" connection by Finerfilters
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    Pressure Gauge for Reverse Osmosis Systems with 1/4" connection by Finerfilters
    £7.99
  47. Grand Forest Diaphragm Booster Pump and Transformer for Reverse Osmosis Systems - 50 GPD
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    Grand Forest Diaphragm Booster Pump and Transformer for Reverse Osmosis Systems - 50 GPD
    £44.99
    Out of stock
  48. E-Chen EC-802-50 Diaphragm Booster Pump 50GPD for Reverse Osmosis / RO Systems
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    E-Chen EC-802-50 Diaphragm Booster Pump 50GPD for Reverse Osmosis / RO Systems
    £49.99
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