Alkaline, mineral-enriching tankless reverse osmosis system with a compact 5-stage filtration process that delivers clean, great-tasting drinking water straight from your tap 24/7.
Clean, great-tasting alkaline water on demand
Advanced 5-stage reverse osmosis with mineral enrichment, filter life display, and self-cleaning function
Compact, tankless design saving space
3-year warranty with reliable customer support included
Every order includes a dual-outlet tap and necessary components
Free delivery
Secure payments
Easy returns
Why choose alkaline reverse osmosis water?
The A8 Alkaline Reverse Osmosis Under-Sink Water Filter is a high-performance under-sink system that combines advanced purification with mineral enrichment to deliver clean, great-tasting alkaline drinking water straight from the tap, 24/7. It’s designed specifically for the challenges of the UK water supply, where taste, limescale, and chemical treatment are common concerns.
This system is built for homes that want better water quality without complexity, offering easy installation (DIY or plumber-installed), quiet operation, and a long-term upgrade that removes the need for bottled water entirely while retaining a balanced, pleasant taste.
Who is this system right for?
The A8 is one of our bestselling systems and is ideal for:
Worried about installation?
Installation is straightforward and beginner-friendly. The system includes a clear, step-by-step installation manual with visual guidance, making it easy to follow even if you’ve never installed a water filter before.
Most customers install it themselves without issues, but a plumber can also complete the setup quickly if preferred. Both options work perfectly.
If you have any questions during installation, our support team is always available at info@veltra-shop.com.
Which model should you choose?
GPD (Gallons Per Day) refers to how quickly the system produces filtered water.
This model delivers a fast 600 GPD (≈ 1.6 L/min) flow, best suited for:
All Veltra reverse osmosis systems deliver the same high level of purification with mineral-balanced alkaline water. The main difference between models is flow rate, allowing you to choose based on household size and usage.
How often do I need to replace the filters?
Filter lifespan depends on your local water quality and household usage, but as a general guideline:
This alkaline reverse osmosis system features a built-in filter life indicator that monitors usage and water flow, letting you know exactly when it’s time for a change, so you never have to guess or replace filters too early.
What certifications does this product have?
At Veltra, we’re committed to the highest standards of safety and performance. Our filtration systems are tested to meet NSF/ANSI 58 and 42 standards, ensuring reliable purification quality and improved water taste.
Each unit is certified under FDA (US), FCC, CE, RoHS, and CC regulations, reflecting our dedication to quality materials, reliable engineering, and globally compliant manufacturing.
We’re also constantly refining our systems to deliver cleaner, better-tasting, and more sustainable drinking water for every home.
Is it difficult to install?
No, most customers install this tankless reverse osmosis system in under an hour with basic tools. The compact under-sink design fits neatly into modern kitchens, and the clear instructions included make setup simple. If you prefer, any plumber can install it quickly.
Can I purchase just one replacement filter instead of the full set?
Yes, absolutely. If you only need to replace one of the filters, you can purchase it individually. Please reach out to our team at info@veltra-shop.com, and we’ll be happy to assist you with the right replacement.
Why is our product more expensive than other water filters?
This premium tankless reverse osmosis system combines high-precision filtration with post-filtration mineral enrichment, a feature most basic filters don’t offer. Built with durable materials and advanced technology, it delivers fast flow, NSF-certified 0.0001μm filtration, and smart monitoring features, all backed by a 3-year warranty. It’s a long-term investment in water quality, convenience, and taste, often replacing the need for bottled water.
How does this water filter improve the taste of my water?
By removing chlorine, PFAS, heavy metals, fluoride, and microplastics, then gently remineralising the water, this alkaline reverse osmosis system delivers clean, crisp, great-tasting drinking water. Reduced limescale also improves the flavour of tea, coffee, and everyday cooking.
Is it noisy or slow like other RO systems?
Not at all. The system is engineered for quiet operation and delivers a fast 600 GPD flow rate, allowing you to fill a glass in seconds, unlike older tank-based RO systems.
Below are some of the most important contaminants that our reverse osmosis system helps remove from your tap water.
| Contaminant | Typical % Removed |
|---|---|
| Aluminium | 97% |
| Ammonium | 85–90% |
| Arsenic | 100% |
| Asbestos (particulate) | 99% |
| Asbestos (soluble) | 80%+ |
| Bacteria | 100% |
| Bicarbonate | 91–95% |
| Bromide | 88–92% |
| Cadmium | 93–96% |
| Calcium | 95–99% |
| Chloramine | 95%+ |
| Chloride | 88–92% |
| Chlorine | 95%+ |
| Chromate | 85–90% |
| Copper | 94–97% |
| Cyanide | 85–90% |
| Endrin | 95%+ |
| Fluoride | 95%+ |
| Glucose | 95%+ |
| Hormones | 98% |
| Iron | 94–97% |
| Lead | 95% |
| Legionella | 100% |
| Lindane | 95%+ |
| Manganese | 96–98% |
| Mercury | 94–97% |
| Methoxychlor | 95%+ |
| Microcystins (algae toxins) | 95–99% |
| Microfibres | 99%+ |
| Microplastics | 99%+ |
| Nickel | 94–97% |
| Nitrate | 90% |
| PFAs (Forever Chemicals) | 99%+ |
| PFOAs | 99%+ |
| PFOs | 99%+ |
| Phenol | 95%+ |
| Pharmaceutical residues | 95–99% |
| Pesticides and herbicides | 95–99% |
| Phosphate | 97% |
| Potassium | 82–88% |
| Proteins | 95%+ |
| Pyrogens | 95%+ |
| Rust and sediment | 98–100% |
| Scale | 98%+ |
| Silicate | 88–93% |
| Silver | 88–92% |
| Sodium | 88–92% |
| Strontium | 93–96% |
| Sucrose | 95%+ |
| Sulphates | 93–96% |
| THMs | 95%+ |
| Toxaphene | 95%+ |
| Urea | 95%+ |
| Viruses | 100% |
| Volatile organic compounds (VOCs) | 95–98% |
| Zinc | 94–97% |
*Percentages are typical ranges and may vary based on local water quality and maintenance. For the best results, make sure to include the remineralisation module in your system — it helps restore essential minerals for better taste and overall health.
When you order the Veltra A8 Alkaline Reverse Osmosis Under-Sink Water Filter, you’ll receive everything you need for a smooth setup:
Model:
Veltra A8 Alkaline Reverse Osmosis Under-Sink Water Filter
System Type:
Alkaline, tankless reverse osmosis system with mineral enrichment
Filtration Stages:
5-stage reverse osmosis filtration with alkaline remineralisation
Filtration Accuracy:
0.0001 μm (reduces chlorine, fluoride, heavy metals, PFAS, microplastics, and other contaminants)
Filtration Capacity:
600 GPD (gallons per day)
Flow Rate:
Approx. 1.6 L/min
Pure-to-Waste Ratio:
Efficient 1.5:1 (reduces water waste compared to traditional RO systems)
Installation Type:
Under-sink, tankless design
Smart Features:
Touchscreen display, real-time TDS monitoring, filter life indicator, self-cleaning function
Filter Replacement:
Tool-free, quick-change cartridge design
Operating Pressure:
0.1–0.4 MPa
Dimensions:
Approx. 450 × 138 × 400 mm
Included Faucet:
Dedicated lead-free drinking water faucet with digital display
Certifications:
NSF 58 & 42, FDA (US), FCC, CE, RoHS, CC
Warranty:
3-year manufacturer warranty
Choose options
“Exceptionally well-built and clearly premium. I’ve tried cheaper systems before, they felt fragile and often leaked. The Veltra A9 is sturdy, compact, and looks sleek under the sink. You can instantly tell it’s made with quality."
★★★★★
Brian M.
Verified Buyer
“It’s a high-quality machine that delivers exactly what you expect from it. It’s absolutely worth the price, and I’ve finally solved the issue of my unpure tap water.”
★★★★★
Kate S.
Verified Buyer
"I actually bought two machines from this brand now, and I must say, it’s the best on the market in my opinion. Our water tastes so much better and feels noticeably cleaner."
★★★★★
Ryan R.
Verified Buyer
Issue of Impure Tap Water Finally Solved
The Veltra A8 Alkaline Reverse Osmosis System reduces chlorine, heavy metals, PFAS, fluoride, microplastics, and limescale from your tap water, then gently remineralises it to deliver clean, balanced, great-tasting alkaline drinking water every day.
Using advanced 5-stage reverse osmosis filtration, it improves taste while helping protect kettles, coffee machines, and other appliances from limescale buildup.
Its compact, tankless design makes it easy to install even in smaller kitchens, while the smart digital display clearly shows system status and filter life for simple, stress-free maintenance. Combined with fast water flow and a reliable 3-year warranty, the A8 is a long-term solution for mineral-balanced, great-tasting drinking water at home.
What Exactly Is in Your Local Tap Water?
Many UK households face tap water filled with hidden contaminants invisible to the eye: chlorine, heavy metals, PFAS (forever chemicals), fluoride, microplastics, limescale, and even bacteria. These not only affect taste and damage appliances over time but, more importantly, raise concerns about long-term health of you and your loved ones.
At Veltra, we design our products to protect your home from those contaminants, delivering cleaner, safer, and better-tasting water.
Common frustrations we help eliminate:
The Veltra A8 Alkaline Reverse Osmosis System addresses water quality at the source, combining fast 600 GPD flow with a compact, tankless design to deliver fresh, mineral-balanced alkaline drinking water while saving space under your sink.
Ultra pure filtration & taste
NSF-certified 5-in-2 multi-layer composite filtration combines five advanced purification stages with a final mineral enrichment step into two compact, easy-to-replace cartridges.
Smart display & fast flow
The digital display tracks water quality and filter life in real time, while high-flow performance ensures fresh, pure water on demand.
easy replacement & maintenance
Compact cartridges click in and out in seconds. Easy swaps mean no tools, no mess, and no hassle. Auto-cleaning keeps the system running at peak performance with minimal upkeep.
What makes us so different?
We’re not just another water filtration brand. We’re the upgrade you’ve been waiting for. See how Veltra delivers where others fall short.
Filter lifespan depends on your local water quality and household usage, but as a general guideline:
Your Veltra A8 system features a built-in filter life indicator that monitors usage and water flow, letting you know exactly when it’s time for a change, so you never have to guess or replace too early.
No. Most of our customers install Veltra A8 in under an hour with basic tools. The compact, tankless design fits neatly under the sink, and clear instructions included in the package make the setup simple. If you prefer, any plumber can install it quickly.
At Veltra, we’re committed to the highest standards of safety and performance. Our filtration systems are tested to meet NSF/ANSI 58 and 42 standards, ensuring exceptional purification quality and improved water taste.
Each unit is certified under FDA (US), FCC, CE, RoHS, and CC regulations, reflecting our dedication to quality materials, reliable engineering, and globally compliant manufacturing.
We’re also constantly striving to improve our products even further, refining every detail to deliver cleaner, safer, and more sustainable water for every home.
Veltra A8 is a premium, tankless reverse osmosis system built with durable materials and advanced technology.
Unlike cheap units that clog, leak, or slow down, A8 delivers fast flow, NSF-certified ultra-pure 0.0001μm filtration, all backed by a 3-year warranty.
It’s a long-term investment in your family’s health and convenience, often saving money compared to bottled water solution.
By removing chlorine, PFAS, heavy metals, fluoride, and microplastics, the Veltra A8 Reverse Osmosis System transforms tap water into crisp, refreshing water that tastes like premium bottled water, without the waste. It also eliminates limescale, so tea, coffee, and cooking taste better.
Not at all. The A8 is designed for quiet, efficient performance, and offers the highest flow capacity in our range. With an upgraded 600 GPD output, it delivers purified water in seconds, unlike traditional tank-based systems.
Maintenance is easy. The digital display provides real-time updates on water quality and filter life, so you always know when it’s time for a change.
The compact cartridges click in and out in seconds and last a long time before needing replacement.
And unlike traditional tank systems that can harbour bacteria, the tankless design keeps everything clean and hygienic. When it’s time to replace your filters, simply order new cartridges directly from our website.
Yes, Veltra A8 is tankless and compact, designed to take up much less space than traditional bulky RO systems. It's dimentions are only 435x400x138mm. That means you still have room for cleaning products and essentials under your sink.
Standard RO systems can waste 3–4 liters for every liter filtered. Ours is designed with a 1.5:1 pure-to-drain ratio, making it far more efficient and eco-friendly than traditional units.
Your Veltra A8 Reverse Osmosis system comes with a 3-year limited warranty, covering any defects in materials or workmanship under normal residential use.
We design every system to last, but if something isn’t right, our support team is here to help. The warranty ensures peace of mind and long-term reliability, protecting your investment in cleaner, safer water.
For any warranty-related questions or support, simply contact us at info@veltra-shop.com, and we’ll take care of it quickly.
Absolutely. Our filters provide water that tastes even better than bottled, without the plastic waste.
Many families who switch to Veltra not only enjoy fresher, cleaner water but also save significantly each year on bottled water while reducing their environmental impact.