Pure Water at
Your Fingertips
Enjoy purified water straight from your tap, safer, cheaper, and easier than ever before.
Cheaper than Bottled Water
Spend less daily and even less in your second year.Purer, safer than Filter Jugs
Get tap-ready water that's fresher and safer than ever.Smaller than traditional systems
Arkk is compact, saving up to 70% space under the sink.Unlimited Pure Water
The ArkkZ Pure Water Filtration System delivers unlimited, pure, and crisp water — without compromising kitchen space.
Compact design fits
seamlessly under any sink
Filter tap included
Removes bacteria & viruses
for safer, healthier water
Reduces chemicals & pesticides
found in household supplies.
Easy DIY filter changes
Installed for free across
Northern Ireland & Ireland
Filters heavy metals
like lead and mercury
Improves taste & removes odour
for cleaner, fresher water.
20 Powerful Layers of Filtration
for Ultra-Clean Drinking Water
.
Our cutting edge filtration technology contains multi-layer filtration to ensure 99.99% of contaminants are removed, making your drinking water pure and crystal clear.
The Water Filter with a
Long Lasting Filter Performance
With a life expectancy of up to 1 and 2 years, Arkk Pure filter cartridges provide long-lasting filtration performance for worry-free use. With these durable filters, you can be rest assured that you'll get pure water every time.

Multi-Layer Filtration for Maximum Purity
Our advanced filtration system uses a series of powerful layers to remove impurities, bacteria, odors, and heavy metals—ensuring every drop is crisp, clean, and safe.
- Removes sediments, rust, and particles
- Neutralizes odor and bad taste
- Eliminates bacteria, viruses, and heavy metals
- Reduces fluoride, chlorine, and chromium
- Blocks total dissolved solids (TDS) effectively

Fits perfectly under your sink, saving up to 70% space
Unlike traditional filtration systems, Arkk Z is designed to fit seamlessly beneath your sink — freeing up room for storage and simplifying installation.

2:1 Low Drain Ratio
This ArkkZ direct flow reverse osmosis system is like no other water filter. It separates pure water from the dirt and carries waste to the drain—keeping your filter clean and ensuring maximum purity at all times.
Designed to make life easy
As easy as turning the tap to fill your glass of water. It takes less than a minute a year to keep your Arkk Pure fully serviced—providing you with fresh, clean water.
Fancy saving some money?
4 Years of ArkkZ usage is equivalent to 2000 bottles of 1.5L mineral water.
If you are buying bottled water for your family's daily hydration, the costs can probably be staggering
Book a ConsultationSpecifications
| Rated Frequency | 50-60HZ |
| Rated Power | 120W |
| Daily Production Rate | 800 gallons (3028 liters) |
| Model | Direct Flow (no tank needed) |
| Working Pressure | Min.20psi-Max. 80psi |
| Rated Voltage | 110-240VA |
| Dimensions | 39cm*13.5cm*39.5cm (L x W x H) |
| Flow Rate | 2.1 liters/m |
| Operation Temperature | Min.39ºF, Max.100ºF |
| Drain Ratio | 2:1 |
Water first goes through a pre-sediment PP membrane and a carbon block filter, removing contaminants like sand, rust, and chlorine. After running through another sediment membrane, the water is subjected to a multi-stage composite filter with a reverse osmosis membrane. This step reduces 90% of TDS (total dissolved solids), removes contaminants such as chemicals, bacterias/viruses and heavy metals, including arsenic and mercury.
Renewell Water ArkkZ reverse osmosis systems can intercept most harmful contaminants including: TDS, chlorine, taste and odour, chloramine, scale and turbidity; carcinogens like chromium and cadmium; heavy metals like lead, mercury, barium, copper, radium and aluminium; micro organic contaminants like cysts; inorganic pollutants like arsenic and fluoride; and organic pollutants like asbestos, benzene, formaldehyde, PFOA and PFOS.
A traditional tank RO system makes water slowly — it takes one minute to produce two to three ounces of RO water, meaning you'd wait at least 5 minutes to fill a glass. Waterdrop's tankless RO system has overcome the issue of bacteria colonising in the bladder tank, and does not run until RO water is needed.
No. The ArkkZ System includes a professional installation nationwide (in Ireland and Northern Ireland). After the purchase, our team will contact you to book the suitable day and time to get it installed for free.
If you live outside Ireland and UK, you can Install it yourself by following the instruction manual and instructional videos, or by contacting support via email, phone, or live chat.
Generally, you should replace the pre-filter every 12 months. The RO membrane filter may last up to 24 months. The ArkkZ reverse osmosis system has smart notifications to remindyou when it is time to change the filters and Renewell Water also sends you emails to advise when the system is due to service.
Reverse Osmosis systems do produce wastewater backwashing the membrane and flushing dirt water, which is collected in the drain and returned to the water treatment plant through the sewers. For households, the water can be diverted from the drain into household applications like laundry, gardening, household cleaning, car washing, and flushing toilets.
The crucial salts and minerals removed by RO are present in foods and supplements, so missing them in RO water is not a problem. Despite the absence of these essential salts and minerals, RO water is way better, safer, and more beneficial to the body than polluted, unfiltered water.
Yes. RO membranes can effectively reject microplastics and PFAS compounds in Ireland And UK, which are emerging problems in drinking water.
This undersink water filter saves 70% of under-sink space and eliminates the risk of bacterial secondary contamination from storage tanks, thanks to its tankless design. ArkkZ Dimensions: 39cm x 13.5cm x 39.5cm (L x W x H)
The twist-and-pull filter design allows replacement in just 3 seconds, making maintenance quick and simple without tools or complicated steps.
If you want to additionally remove contaminants that a water softener doesn't remove, then yes. However, if you want to remove the salty taste of softened water, a RO system is not recommended, because when water passes through a softener it increases salt concentration, making it much saltier than the source water.
If the TDS (total dissolved solids) value of your tap water is over 250, a reverse osmosis water filter system can improve the quality of your drinking water. If you don't have a TDS meter, you can determine the quality of your water based on whether limescale develops when the water is boiled or whether the water has an unpleasant odour.
The water filtered by the RO system is free of chemicals (as Chlorine) and heavy metals, which often affects the flavour of food. Similarly, RO water is more suitable for tea and coffee, and is free of heavy metals and organic compounds, making it ideal for drinking.
Yes. A high-quality water filter system can not only help newborns drink healthily but also improve the quality of drinking water for the whole family. It can also be used in combination with milk powder to prepare a milk drink for infants.
Frequently asked questions
Here are some common questions about ArkkZ Reverse Osmosis Water Filter System.
| Brand | Renewell Water Filtration Ltd |
| Rated Frequency | 50-60HZ |
| Working Pressure | Min.20psi-Max. 80psi |
| Rated Voltage | 110-240VA |
| Rated Power | 120W |
| Daily Production Rate | 800 gallons (3028 liters) |
| Drain Ratio | 2:1 |
| Dimensions | 39cm*13.5cm*39.5cm (L x W x H) |
| Operation Temperature | Min.39ºF, Max.100ºF |
| Model | Direct Flow (no tank needed) |










