RO Units

Whether you’re looking for a 200gpd or 400gpd Reverse Osmosis Unit, our 4-stage RO units have you covered. With optional DI chambers and Booster Pumps Aquarium Pole Fed available, you’ll be spoilt for choice. You can enjoy free UK shipping with no minimum order quantity, as well as same-day despatch on orders placed before 4pm. Browse our range of RO Units below.

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  1. 4 Stage Reverse Osmosis Unit with Booster Pump and DI Stage 50-100gpd
    Rating:
    89% of 100

    The Finest-Filters 4 stage RO unit with booster pump is ideal for ultra pure water production in a range of applications, and especially in situations where the water pressure is too low for effective water production rate from an un-pumped system. This is a very advanced RO unit, with a built in booster pump, automatic membrane back flush, pressure gauge, high pressure and low pressure switch.

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  2. 50gpd 4 Stage Complete RO Reverse Osmosis Unit
    Rating:
    90% of 100

    You are purchasing a high quality Finest Filters 4 stage Reverse Osmosis RO Unit. Complete with all filters and all accessories.

    This unit is supplied with a 50gpd (gallon per day) membrane. We also sell units supplied with 75gpd and 100gpd membranes.

    Our 4 stage units have a DI chamber, which is supplied filled with high quality DI Resin. After passing through the membrane, the filtered water is passed through the DI resin, to reduce the Total Dissolved Solids to 0.

    Complete with waste water clamp valve, and also a self piercing feed valve to connect to 15mm copper pipe.

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  3. 75gpd 4 Stage Complete RO Reverse Osmosis Unit

    You are purchasing a high quality Finest Filters 4 stage Reverse Osmosis RO Unit. Complete with all filters and all accessories.

    This unit is supplied with a 75gpd (gallon per day) membrane. We also sell units supplied with 50gpd and 100gpd membranes.

    Our 4 stage units have a DI chamber, which is supplied filled with high quality DI Resin. After passing through the membrane, the filtered water is passed through the DI resin, to reduce the Total Dissolved Solids to 0.

    Complete with waste water clamp valve, and also a self piercing feed valve to connect to 15mm copper pipe.

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  4. 100gpd 4 Stage Complete RO Reverse Osmosis Unit

    You are purchasing a high quality Finest Filters 4 stage Reverse Osmosis RO Unit. Complete with all filters and all accessories.

    This unit is supplied with a 100gpd (gallon per day) membrane. We also sell units supplied with 50gpd and 75gpd membranes.

    Our 4 stage units have a DI chamber, which is supplied filled with high quality DI Resin. After passing through the membrane, the filtered water is passed through the DI resin, to reduce the Total Dissolved Solids to 0.

    Complete with waste water clamp valve, and also a self piercing feed valve to connect to 15mm copper pipe.

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  5. 50gpd 3 Stage Compact Reverse Osmosis RO Unit

    You are purchasing a high quality Finest Filters 3 stage Compact Reverse Osmosis RO Unit. Complete with all filters and all accessories.

    This unit comes complete with a 50gpd (gallon per day) membrane.

    Our quality 3 stage compact RO units come with all accessories required for immediate setup, allowing you to product ultra pure RO water at home!

    Complete with waste water clamp valve, and also a self piercing feed valve to connect to 15mm copper pipe.

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  6. 75gpd 3 Stage Compact Reverse Osmosis RO Unit

    You are purchasing a high quality Finest Filters 3 stage Compact Reverse Osmosis RO Unit. Complete with all filters and all accessories.

    This unit comes complete with a 75gpd (gallon per day) membrane.

    Our quality 3 stage compact RO units come with all accessories required for immediate setup, allowing you to product ultra pure RO water at home!

    Complete with waste water clamp valve, and also a self piercing feed valve to connect to 15mm copper pipe.

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  7. 100gpd 3 Stage Compact Reverse Osmosis RO Unit

    You are purchasing a high quality Finest Filters 3 stage Compact Reverse Osmosis RO Unit. Complete with all filters and all accessories.

    This unit comes complete with a 100gpd (gallon per day) membrane.

    Our quality 3 stage compact RO units come with all accessories required for immediate setup, allowing you to product ultra pure RO water at home!

    Complete with waste water clamp valve, and also a self piercing feed valve to connect to 15mm copper pipe.

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  8. 200gpd 4 Stage Reverse Osmosis RO Unit with Optional DI Chamber

    You are purchasing a high quality Finest Filters 200gpd RO Unit. This unit comes with 3 pre filters (5 Micron Sediment, Carbon Block filter and Granular Carbon GAC filter cartridge). It is also supplied with 2 x 100gpd membranes, making this a 200 gallon per day unit.

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  9. 400gpd 5 or 6 Stage Reverse Osmosis RO Unit with Booster Pumps Aquarium Pole Fed

    You are purchasing a high quality Finest Filters 400gpd RO Unit. This unit comes with 3 pre filters (5 Micron Sediment, Carbon Block filter and Granular Carbon GAC filter cartridge). It is also supplied with a high quality 400gpd FCS RO Membrane, and a post carbon filter.

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