
Culligan G5 Pumped Reverse Osmosis
The G5 Standard under-sink reverse osmosis drinking water systems, featuring a traditional design, are equipped with a complete installation kit and color-coded tubes to facilitate easy setup.
AC Slim Reverse Osmosis Unit
Culligan Compact Reverse Osmosis Unit with Remineraliser
Introducing the Culligan Compact Reverse Osmosis Unit with Remineraliser – the ultimate solution for pristine, great-tasting water right at your fingertips. Engineered with precision and innovation, this cutting-edge system boasts a 5-stage reverse osmosis process, ensuring the highest standard of water purification.
Comprehensive 5-Stage Filtration Process

Water Carbon Filters


Best Reverse Osmosis and Filtration System for Home
If you’re searching for the best reverse osmosis system or the best water filtration system , our solutions deliver unmatched quality and durability. Our systems meet stringent quality standards and are suitable for both municipal and well water sources. Operating efficiently under standard water pressure, these units are compact enough for kitchen installations and robust enough for long-term use.
Clean Water for Every Need

Drinking water system features 5 stages of filtration:
- STAGE 1: SEDIMENT FILTER – PP5 MICRON
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- Â Â Reduces dirt, sediment, rust, sand, and other particles.
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- STAGE 2: GRANULAR ACTIVATED CARBON FILTER
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- Â Â Reduces chlorine, unpleasant taste and odours. Protects and extends reverse osmosis membrane service life.
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- STAGE 3: SEDIMENT FILTER – PP1 MICRON
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- Â Â Final fine cleaning. Removes particles larger than 1 micron.
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- STAGE 4: RO MEMBRANE
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- Â Â Splits water into clean and wastewater, sending 99% of all impurities, such as heavy metals, pesticides, nitrates, microplastics, bacteria etc to waste.
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- STAGE 5: POST CARBON FILTER
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- Â Â Final polishing process to enhance clarity and freshness.
Operating Parameters
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- Â Â Water source: municipal or pre-treated well water.
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- Â Â Feed water quality/TDS: <1500ppm
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- Â Â Inlet water temperature: 4-30 degrees C
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- Â Â Inlet water pressure: <3 bar*
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- Â Â Inlet pH Range: 6.50-8.50
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- Â Â Maximum Iron: <0.3ppm
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-  *RO systems require pressure to operate. Variations in pressure either too high or low can cause changes in purified water quality. RO systems can operate with a    minimum pressure of 3 bar although 4 bar is more ideal. Systems should also be limited so that they do not exceed the maximum 6 bar operating pressure. This is   normally done with a pressure reducing valve. A pumped RO system is a better choice in low mains pressure areas.
Accessories included with the system:
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- Â Â Feed water adapter, feed valve, drain saddle.
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- Â Â Pressure tank (total vol. 12 L/3.2 gal, usable vol. up to 7 L/1.8 gal).
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- Â Â Colour tubes for easy installation.
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- Â Â Chrome filtered water faucet.
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- Â Â Service wrenches.
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- Â Â User manual
"Exceptional Experiences"
EXCELLENT Based on 512 reviews Edward Tominaga2024-01-09 Highly recommend paul mccarthy2023-11-21 Efficient and fast would highly recommend. James us clean and fast at his job aswell. Nigel Stanley2023-11-21 Absolutely delighted with the water softener we got installed at our home with Celtic Water Solutions. Immediate results seen and would highly recommend if living within a limestone-heavy region like ourselves. Aldrin George2023-10-07 Excellent communication,Very Professional,Quick response,Punctuality,Neat and tidy work,Sales representative.Highly recommended. Patrick Loftus2023-09-08 Brilliant service from CWS. I had a problem due to too much mains water pressure. A very quick service/fix was arranged thanks to one of the very helpful ladies in the office. The serviceman was gentleman and very quick to fix my problem.