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Mombasa
Branch

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with expert water purification solutions for homes and offices.

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Water Purification Specialists

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Water

Advanced RO water purifiers for borehole, salty, municipal and
other water sources, delivering clean, safe drinking water.

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Kenya's Leading Water Purifiers & Reverse Osmosis (RO) Filter Systems for Home

Trusted.
Recognized.

Recognized for helping Kenyan families
and businesses enjoy cleaner, safer
drinking water every day.

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Water Purifiers & Water Filters in Kenya - Reliable Solutions for Borehole, Salty & Tap Water

Get the best water purifier prices in Kenya with iClear’s advanced Reverse Osmosis technology. Whether you are dealing with salty borehole water in Syokimau or looking for a clean drinking water solution for your Nairobi office, our systems remove 99% of contaminants. We provide water purification solutions for homes and businesses across Kenya, with home purifiers available for purchase and an Annual Service Subscription designed for offices. Save up to 80% compared to bottled water costs with our durable, easy-to-maintain RO filters. Free delivery countrywide and Free professional installation available today in Nairobi, Nakuru, and environs.

For You and Your Home

4+ Years RO Champions

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With a Greater Mission

Across 5 Markets

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Changing Lives One Drop At A Time

12,000+ Customers Served

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Best Water Purifiers in Kenya – iClear RO Systems

Shop our most popular RO water purifiers, trusted by Kenyan families and offices. Save up to 80% vs bottled water with free delivery, installation, and a 1‑year warranty on all models.

iClear Premier RO Water Purifier – High Capacity for Homes & Offices in Kenya

KSh 49,000

iClear Standard RO Water Purifier – Best for Salty & Borehole Water in Kenya

KSh 25,000

iClear Office Water Purifier in Kenya – Bottleless RO System for 20–30 Staff (Annual Service Subscription)

KSh 80,000

iClear Desktop Water Purifier in Kenya – Portable RO Water Dispenser with Instant Hot Water

KSh 40,000

Our branches

Growing Our Presence Across Kenya.

iClear is expanding its branch network across Kenya, making it easier for customers to access our products and services. Free delivery is available countrywide, while free installation is available in Nairobi, Nakuru and their confirmed surrounding service areas, including areas such as Kitengela and Syokimau. The map also highlights our wider service reach and planned expansion areas. If you are outside the confirmed free-installation areas, please enquire with our team to confirm availability in your location.

CountrywideFree delivery on every order

3 branchesNairobi, Nakuru & Mombasa(Opening soon)

Western KenyaNext branch, planned

Nairobi

Open now

Head office & flagship branch

Free Installation in Nairobi & Surrounding Areas:

NairobiKiambuKajiadoMachakos

Nakuru

Open now

Central & Rift Valley branch

Free Installation in Nakuru & Selected Service Areas:

Nakuru

Mombasa

Opening soon

Coast branch, location secured

Coming Soon to the Coast:

Mombasa Kilifi Kwale

Western Kenya

Planned next

Future expansion into Western Kenya

Planned Expansion Area

iClear presence across Kenya

Coverage shown is a guide. Free delivery is countrywide; free installation depends on your location within each branch's service area.

Nairobi

Nakuru

Mombasa (opening soon)

Western Kenya (planned)

Not yet covered

New Branch · Opening Soon

Mombasa & The Coast

Clean, purified water is coming to Mombasa.

iClear is expanding to Mombasa. Our new branch is currently in development and will bring professional water purification solutions, expert installation and local support closer to homes and businesses across Mombasa and the Coast.

Free delivery in Mombasa

Free professional install

Local Mombasa support team

1 Year warranty

Book free installation

iClear Standard Advanced water purification — KSh 25,000

Mombasa, Kenya

What is (RO) Reverse Osmosis?

Reverse Osmosis (RO) is a water purification method that pushes water through a very fine filter. This filter blocks dirt, chemicals, bacteria, and even dissolved salts. It's one of the few systems that can turn salty water and borehole water into clean, safe drinking water that tastes fresh and sweet.

Removes salts Removes bacteria Removes chemicals

99.9% Purification rate

Why reverse Osmosis

RO removes both visible impurities and invisible contaminants like salts, fluoride, chemicals, and bacteria. It is powerful enough to purify salty water, hard water, borehole water, municipal water — basically any type of water — and make it safe for drinking and cooking in Kenyan homes.

100%

Clean Water

Great for Borehole Water

Softens hard borehole water, removes bad smell, and filters out excess minerals for cleaner, safer drinking water.

Purifies Salty Water

Eliminates dissolved salts from salty or coastal water, giving you fresh-tasting water every day.

Saves You Money

Say goodbye to buying bottled water. RO gives you unlimited clean water straight from your tap.

Why iClear?

Save big with iClear’s advanced reverse osmosis water purification solutions. Enjoy convenient access to clean drinking water at home or discover our Annual Service Subscription for offices. Reduce your reliance on expensive bottled water and enjoy professional support from our team.

Reverse Osmosis

Reverse Osmosis uses a semi-permeable membrane to help remove dissolved salts, ions, unwanted substances and other impurities from water, providing a reliable solution for improving drinking water quality.

Save 80%

iClear purifiers are a cost-effective, long-term alternative to regularly buying bottled drinking water. With a one-time purchase, you can enjoy convenient access to purified water while reducing your ongoing bottled water expenses. Depending on your consumption and running costs, you could save up to 80% compared to bottled water.

Reliable Customer Care

We're committed to supporting you beyond installation. From maintenance guidance to genuine replacement filters and assistance when you need it, our team is here to help you keep your water purifier running smoothly.

Blog Articles

Learn about reverse osmosis and how it has saved money while giving convenience to Kenyans.

How Kenya's Seasons Change Your Water Quality

Research from Kenyatta University found that turbidity, coliform counts and nitrate levels in surface water sources across central Kenya peak during the long rains (April - May) and reach their lowest levels during the dry season. Kenya's Four Hydrological Seasons Kenya's climate creates four distinct seasons with direct implications for source water quality: Season Months Primary Water Quality Implication Long rains March–May Peak turbidity, coliform, agricultural runoff Post-long-rains dry June–August Improving quality; low river flows concentrate remaining contaminants Short rains October–December Secondary turbidity/contamination peak (less intense than long rains) Main dry season January–February Lowest pathogen levels; algal growth risk in warm, slow-moving reservoirs What Seasonal Research Shows for Central Kenya A water quality assessment study conducted across multiple intake points in Ruiru and Thika, which supply Nairobi's Ngethu water works, found that turbidity increased by an average of 340% during the long rains compared to the dry season. Coliform counts during the long rains exceeded WHO limits in 68% of raw water samples at intake. Turbidity: The Visible Marker Turbidity, the cloudiness caused by suspended particles, is the most obvious seasonal change. High turbidity is not just an aesthetic issue: suspended particles physically shield bacteria and viruses from UV disinfection and chlorination, dramatically reducing treatment efficacy. The WHO guideline for treated water is <1 NTU; during peak rains, raw Nairobi source water regularly exceeds 100 NTU. The Algal Bloom Season During hot, dry periods (particularly January–February), slow-moving reservoirs and storage tanks warm significantly. This creates conditions for algal growth, including potentially harmful cyanobacteria (blue-green algae). Certain cyanobacteria produce toxins (microcystins, cylindrospermopsin) that are not removed by standard chlorination and can survive into treated water at trace levels. Activated carbon in multi-stage RO systems effectively adsorbs microcystin-LR, one of the most commonly detected cyanotoxins, providing an additional safety layer during dry-season bloom periods. Adjusting Your Maintenance to the Seasons Before the long rains (February): Replace sediment pre-filters so they enter the high-load season at full capacity. During the long rains (March–May): Inspect pre-filter housing monthly; high turbidity periods may require more frequent pre-filter changes. After the long rains (June): Schedule your annual membrane TDS check to confirm no breakthrough occurred during the high-load period. Before the short rains (September): Repeat pre-filter inspection and replacement if more than 4 months since last change. Q: Does my RO system need any special adjustment between seasons? A: The system itself does not need adjustment, it handles variable input quality automatically. What changes is maintenance frequency: pre-filters need more attention during high-turbidity seasons. Q: How do I know if my water has algal toxins? A: Algal toxins produce no distinctive taste or colour at typical levels. Regular membrane inspection and maintaining your carbon pre-filter schedule is the best practical protection. Year-round protection, whatever the season delivers iClear's service plan includes pre-season maintenance checks timed to Kenya's water quality calendar. Find out more. Keywords: seasonal water quality Kenya, rainy season water contamination, Nairobi water quality seasons, water purifier maintenance Kenya seasons

Does Water Pressure Affect Your RO Purifier's Performance?

RO membranes require a minimum inlet pressure of 40 psi (2.8 bar) to operate effectively. Below this threshold, membrane rejection rates fall and output slows significantly. Most Nairobi households on upper floors experience inlet pressures below this minimum. Why Pressure Matters in Reverse Osmosis Reverse osmosis is a pressure-driven process. The applied pressure must overcome the osmotic pressure of the feed water, a force that opposes water movement across the membrane. For typical Kenyan tap water with a TDS of 200–400 mg/L, the osmotic pressure is approximately 10–20 psi. The system must exceed this threshold, plus overcome membrane resistance, to produce permeate (purified water). The relationship between pressure and performance is not linear: below 40 psi, rejection rates fall disproportionately, meaning contaminants pass through the membrane at an increasing rate. A system running at 25 psi may be producing water with only 80–85% rejection of TDS, well below its rated performance. Typical Pressure Conditions in Nairobi Municipal supply pressure in Nairobi ranges widely by zone, supply period and floor level: Scenario Typical Inlet Pressure Impact on RO Ground-floor, full supply period 50–80 psi Optimal performance Second floor, full supply period 35–55 psi Marginal to adequate Third floor and above 15–40 psi Below minimum; booster pump required Low-demand periods (e.g. 3–5 am) 60–90 psi High; consider pressure regulator Peak demand (7–9 am) 20–40 psi Often below minimum; pump needed Solutions for Low-Pressure Households Booster pump: A small electric pump fitted to the RO inlet raises pressure to 60–80 psi regardless of incoming supply. This is the most common and reliable solution for upper-floor apartments. Gravity-feed design: Some systems are designed for gravity-feed from an elevated storage tank, operating at lower pressure with a larger membrane area to compensate. Elevated storage tank: Storing water at 3–4 metres above the RO system generates approximately 4–6 psi per metre of head, sufficient for ground-floor installations if storage is high enough. When Pressure Is Too High Excess pressure (above 80 psi / 5.5 bar) stresses membrane fibres and can cause premature failure. Buildings where pressure exceeds 80 psi, typically rare but possible during off-peak hours in low-lying zones, benefit from a pressure regulator fitted at the household inlet. Q: How do I know what pressure I have? A: A simple pressure gauge fitting available at any hardware store threads onto any standard tap connection and gives you a reading in psi or bar within seconds. Optimised for Kenya's pressure conditions iClear systems are configured for Nairobi's variable supply pressure. Find out more. Keywords: water pressure RO purifier Kenya, low pressure reverse osmosis Nairobi, booster pump RO system, RO performance pressure

How Water Quality Affects the Taste of Your Tea and Coffee

The Specialty Coffee Association recommends water with a TDS of 75 to 250 mg/L and a pH of 6 to 8 for optimal extraction. Hard water causes scale and produces flat, bitter flavours; soft water over-extracts and turns astringent. Kenya's Double Advantage, and the Water Problem Kenya is home to some of the world's most celebrated teas, Kenyan orthodox from Nandi Hills, Kericho and Limuru, and a growing specialty coffee scene from Nyeri, Kiambu and Mount Elgon estates. The complexity of these flavours, however, can be dramatically suppressed by the water used to brew them. In areas with high mineral content or chlorinated municipal water, the full character of a premium Kenyan tea or single-origin espresso simply does not come through. The Science of Extraction Both tea and coffee extraction are chemical processes where water molecules carry flavour compounds, oils and aromatic molecules out of the leaf or ground bean. The mineral content and pH of the water directly affect which compounds are extracted and in what proportion: Magnesium ions (Mg²⁺): Selectively extract fruity acids and aromatic compounds, beneficial in moderate amounts. Calcium ions (Ca²⁺): Bind with certain aromatic acids, muting floral and citrus notes, problematic at high concentrations (hard water). Chlorine / chloramine: React with organic compounds in tea and coffee to produce harsh, medicinal off-flavours. Bicarbonate (alkalinity): Neutralises acids in coffee, reducing perceived brightness and complexity. What Nairobi's Water Does to Your Brew Nairobi municipal water has a TDS averaging 180–280 mg/L and is chlorinated to a residual of 0.2–0.5 mg/L. The hardness (primarily calcium carbonate) tends toward the medium-high range. This means: Chlorine is the most immediate problem, it suppresses delicate floral aromas in tea and produces harsh notes in coffee. Calcium hardness in the high range flattens the complexity of single-origin coffees, particularly washed Kenyans. Hard water accelerates scale buildup in kettles and espresso machines, reducing their lifespan and further degrading water quality at the heating element. The Ideal Water Profile for Kenyan Tea and Coffee Parameter Recommended Range (SCA) Nairobi Municipal Typical Effect if Outside Range TDS 75–250 mg/L 180–280 mg/L At high TDS, flattens extraction pH 6.5–8.0 6.8–7.5 Low pH: sour/sharp; high pH: flat/bitter Calcium hardness 51–68 mg/L as CaCO₃ 100–200 mg/L High: mutes fruity notes; causes scale Chlorine 0 mg/L (non-detectable) 0.2–0.5 mg/L Even trace amounts alter aroma How Filtered Water Transforms Your Cup A multi-stage RO system with a mineralisation stage produces water in the ideal TDS range (50–150 mg/L post-remineralisation), removes all detectable chlorine, and reduces hardness to a level that allows full flavour expression. Professional baristas in Nairobi's specialty cafes have adopted RO-filtered water precisely because it produces consistent, balanced extraction regardless of what the municipal supply delivers that day. Brew better with better water iClear's mineralisation stage produces water at the ideal TDS and pH for Kenyan tea and specialty coffee. Find out more. Keywords: water quality tea coffee Kenya, filtered water coffee Nairobi, RO water coffee brewing, Kenyan coffee water chemistry