Premium 4-Stage Reverse Osmosis Water Filter System 50 GPD for Home Use
£104.49
Pure Water, Pure Life.
From simple setups to advanced multi-stage systems and water testing PurOstill helps you take charge of every drop you drink.
Shop by Purification Need
Specialised Treatment
Whole-home & targeted solutions for tough water challenges.
Filters
Long-lasting filters to polish taste, remove odours and reduce residual contaminants.
Water Systems
Gravity, countertop systems for everyday pure drinking water.
Testing Kits
Easy-to-use kits to see exactly what’s in your water before and after filtration.
Accessories
Jugs, cleaners and spare parts that keep your equipment running at peak performance.
Our Bestsellers
Why Choose PurOstill?
Your health and peace of mind come first. Every PurOstill Product is built to deliver consistent purity, backed by rigorous testing and long-term support.
Quality You Can Trust
Every product is tested to strict quality standards and independently certified for performance and safety, so you know exactly what's coming out of the tap.
Advanced Purification Technology
From gravity filters to distillation systems, we use proven technologies to remove contaminants like chlorine, heavy metals, micro-plastics, and more—without compromising taste.
Expert, Human Support
Not sure which system you need? Our expert team is here to help with product selection, installation guidance, and ongoing maintenance advice.
Loved by Our Customers
starstarstarstarstar
“The water tastes incredibly clean now. My whole family noticed the difference immediately. Installation was a breeze with the guide provided. Highly recommend the AquaHome Pro!”
Sarah J.
Verified Buyer
starstarstarstarstar
“I was skeptical at first, but the UnderSink Ultra-Flow has been a game-changer for our kitchen. No more plastic bottles, and the water pressure is still great. Fantastic product.”
Mark T.
Verified Buyer
starstarstarstarstar_half
“Customer service was so helpful when I had a question about which filter I needed. They responded quickly and pointed me in the right direction. A+ service and products.”
Emily R.
Verified Buyer