Clean drinking water for flats and villas.
In coastal Oman the mains water is desalinated and treated, then it waits in a roof or ground tank and runs through the building's pipes. That is where taste, rust and sediment creep in. CrownGuard sits under the kitchen sink and filters them out, in units sized from a studio flat to a family villa. Our Oman partner fits and services it.

Choose by how many live at home.
Each system fits under the sink and is sized to the household. Pick a Twin, or a Triple with an extra ultrafiltration stage.
Apartment
The most compact CrownGuard, for studios and smaller flats where the sink cupboard is tight. Comes as a Twin or a Triple.
- Slim under-sink body
- 300 L/h filtered
- Twin or Triple
- Fitting kit included
Home Triple
Sediment, carbon and an ultrafiltration membrane in one under-sink unit, for family flats and villas.
- Three filter stages
- 300 L/h filtered
- For 2 to 6 people
- Fitting kit included
Home Smart
A covered unit with an LCD display that counts down filter life and tells you when a change is due.
- LCD display and alerts
- Change reminders
- Flood protection built in
- Closed cabinet
Every model, side by side.
Every Twin handles sediment and taste. A Triple adds ultrafiltration, a barrier against bacteria, viruses and microplastics.
| Feature | Apartment Twin | Apartment Triple | Home Twin | Home TripleMost popular | Smart Twin | Smart Triple |
|---|---|---|---|---|---|---|
| Capacity & performance | ||||||
| Best for | Studios & small flats | Studios & small flats | Family homes | Family homes | Tech-led homes | Premium homes |
| Household size | 1-2 people | 1-2 people | 2-6 people | 2-6 people | 2-6 people | 2-6 people |
| Flow rate | 300 L/h | 300 L/h | 300 L/h | 300 L/h | 300 L/h | 300 L/h |
| Filtration stages | ||||||
| Sediment filter (5 micron) | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Carbon block filter | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Ultrafiltration (0.01 micron) | ✗ | ✓ | ✗ | ✓ | ✗ | ✓ |
| Bacteria & virus removal | ✗ | 99.99% | ✗ | 99.99% | ✗ | 99.99% |
| Removes microplastics | ✗ | ✓ | ✗ | ✓ | ✗ | ✓ |
| Smart features & monitoring | ||||||
| LCD display panel | ✗ | ✗ | ✗ | ✗ | ✓ | ✓ |
| Filter alerts | Manual | Manual | Manual | Manual | Automatic | Automatic |
| Usage tracking | ✗ | ✗ | ✗ | ✗ | ✓ | ✓ |
| Flood protection | ✗ | ✗ | ✗ | ✗ | ✓ | ✓ |
| Design & installation | ||||||
| Design type | Open | Open | Open | Open | Enclosed | Enclosed |
| Installation | By our local partners | By our local partners | By our local partners | By our local partners | By our local partners | By our local partners |
| Space required | Ultra-compact | Ultra-compact | Standard | Standard | Standard | Standard |
| Maintenance | ||||||
| Sediment filter life | 6 months | 6 months | 6 months | 6 months | 6 months | 6 months |
| Carbon filter life | 6 months | 6 months | 6 months | 6 months | 6 months | 6 months |
| UF membrane life | N/A | 12 months | N/A | 12 months | N/A | 12 months |
| Filter change time | 5 mins | 5 mins | 5 mins | 5 mins | 10 mins | 10 mins |
| Technical specs | ||||||
| Operating pressure | 2-6 bar | 2-6 bar | 2-6 bar | 2-6 bar | 2-6 bar | 2-6 bar |
| Temperature range | 5-45°C | 5-45°C | 5-45°C | 5-45°C | 5-45°C | 5-45°C |
| Connection | Push-fit 1/4" | Push-fit 1/4" | Push-fit 1/4" | Push-fit 1/4" | Push-fit 1/4" | Push-fit 1/4" |
| Upgrades, warranty & support | ||||||
| UV disinfection | Optional add-on | Optional add-on | Optional add-on | Optional add-on | Optional add-on | Optional add-on |
| Warranty | 1 year | 1 year | 1 year | 1 year | 1 year | 1 year |
| Oman-based support | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Three stages from the tank to the tap.
Sediment filtration
Down to 5 micronsStage one catches sand, silt and rust down to 5 microns, the grit that tanks and old pipes release into the water.
- Sand and silt
- Rust from tanks and pipes
- Dirt
- Loose particles
- Flakes of scale
Why it matters: The carbon after it lasts longer, and kettles and taps stay free of grit.
Carbon block filtration
Up to 11,000 L capacityActivated carbon removes chlorine, chemical traces and the organic compounds that cause musty tastes and smells.
- Chlorine and chloramines
- Chemical traces
- Pesticides and herbicides
- Volatile organic compounds
- Musty taste and smell
Why it matters: Water stored in a hot tank often tastes flat. Carbon gives it a clean, fresh taste again.
Ultrafiltration membrane
0.01 micron · Triple systemsTriple systems add a hollow-fibre membrane with 0.01 micron pores. It holds back bacteria, viruses, cysts and microplastics, and lets calcium and magnesium through.
- Bacteria (99.99%)
- Viruses (99.99%)
- Cysts and parasites
- Microplastics
- Fine colloids
Why it matters: A physical barrier with no chemicals, and the finest stage CrownGuard offers. Unlike RO, it keeps the minerals.
UV disinfection
Add a UV stage for one more barrier after the filters. It deals with 99.99% of microorganisms without chemicals.
99.99% of microorganisms
UV light disrupts the DNA of bacteria and viruses. Nothing is added to the water.
LED lamps
LEDs rated for over 1,000 hours turn on by themselves whenever water flows.
Compact
62 × 68 × 91 mm, so it fits under the sink beside the filters.
Optional
Fitted on request, after the filters, if you want a disinfection step at the tap.
What changes in a kitchen.
Cleaner water
- Chlorine and chemical traces removed
- Fewer microplastics in your glass
- Bacteria and viruses blocked (UF / UV)
- Nothing added, minerals kept
- Good water for cooking and baby milk
Fresher taste
- No chlorine smell
- Better tea, coffee and karak
- Ice with no aftertaste
- Clear water on the table
- Clean water for cooking rice and soups
No more bottles
- Lower bottled-water spend
- No big bottles to store or carry
- Kettles and machines kept free of grit
- Filtered water any time
- Quick filter changes, or we do them

British design, built to last.
CrownGuard is designed in Britain and built in Italy to European standards. Its long-life filters keep costs low, and our Oman partner fits and services every unit.
- Sediment, carbon and ultrafiltration, with optional UV
- Long-life cartridges
- Neat under-sink fit by our Oman partner
- 1-year warranty from installation
- Maintenance plans from a fixed annual fee
Home water filters in Oman, answered.
Q1Can I drink tap water in Muscat?
Q2We are on a well. Is CrownGuard enough?
Q3How often are filters changed?
Q4Will it save on bottled water?
Q5Does it work with my water pressure?
Q6Who installs CrownGuard in Oman?
CrownGuard in Oman
Water in a home has usually spent time in a roof or ground tank, and on a farm or inland villa it may come from a well. Sand, rust and stale tastes are the common results.
CrownGuard fixes that under the sink or at the villa's inlet. Sediment and carbon stages handle grit and taste, and Triple models add ultrafiltration down to 0.01 micron.
Common questions
Is CrownGuard enough for well water?
Filtration cleans it up, but for a private well or falaj supply we add the optional LED UV stage as the final step. It is compact, at 62 × 68 × 91 mm.
What is the Home Smart?
The villa version of CrownGuard, sold as a Twin or a Triple.
Will it soften hard water?
No. CrownGuard filters particles and taste. Hard inland water needs a Regal softener, and dissolved salts need reverse osmosis.
Specified, installed and looked after anywhere in Oman
Coastal mains water is mostly desalinated seawater. It is soft, but it picks things up in pipes and tanks. Inland wells can be very hard: one 2024 study of Al Dhahirah groundwater found an average hardness of 659 mg/l.
Say which governorate you are in, whether the water comes from the Nama network, a tank or a well, and what you need it for. We design the system, price it in rials and arrange the fit.
Source: Nama Water Services; Al Dhahirah groundwater study, International Journal of Environmental Analytical Chemistry (2024).
Find your CrownGuard.
Tell us if it is a flat or a villa, how many people live there and where the water comes from. We'll recommend a system and price fitting and servicing in rials.