Countertop Water Purifiers & Filters for UK Homes

Explore countertop reverse osmosis water purifiers, replacement filters and TDS testing tools for UK homes, London flats, renters and small kitchens. Other Water helps you compare practical water purifier options for cleaner-tasting daily drinking water without under-sink installation or permanent plumbing changes.

Start with Nova 100 if you want a countertop reverse osmosis purifier for everyday drinking water, choose ROF2501 when you need a compatible replacement filter, or use TDS1 to compare tap water and filtered water readings at home.

Nova 100 Countertop Reverse Osmosis Water Purifier

Sale

Nova 100 Countertop Reverse Osmosis Water Purifier

Nova 100 Countertop Reverse Osmosis Water Purifier

£199.00 GBP

Sale price £199.00 GBP Regular price £299.00 GBP
ROF2501 Reverse Osmosis Replacement Filter

ROF2501 Reverse Osmosis Replacement Filter

ROF2501 Reverse Osmosis Replacement Filter

£49.99 GBP

Sale price £49.99 GBP Regular price
TDS1 Water Quality Test Pen

TDS1 Water Quality Test Pen

TDS1 Water Quality Test Pen

£0.01 GBP

Sale price £0.01 GBP Regular price

Buying Guide

Which Water Purifier Product Do You Need?

Choosing the right water product depends on whether you want to filter your drinking water, maintain an existing purifier, or test water quality at home. Other Water keeps the range simple so UK customers can easily choose between purification, replacement filtration, and TDS1 water testing.

For Cleaner Everyday Drinking Water

Choose Nova 100 if you want a countertop reverse osmosis water purifier for your home, office, flat, or rented space. It is designed for customers who want better-tasting drinking water without permanent plumbing changes.

Best starting product
Countertop reverse osmosis purifier
Suitable for UK homes and renters

View Nova 100

For Filter Replacement

Choose ROF2501 if you already use a compatible Other Water purifier and need a replacement reverse osmosis filter. Replacing filters helps support continued filtration performance and everyday water quality.

Replacement filter cartridge
Supports purifier performance
Available in multiple colour variants

View ROF2501

For Water Quality Testing

Choose the TDS1 Water Quality Test Pen if you want to check Total Dissolved Solids and compare tap water with filtered water. It helps customers better understand water quality before and after filtration.

Checks TDS levels
Compares tap and filtered water
Included free with Nova 100 where offered

View TDS1

Product Guide

Find the Right Other Water Product

Choose based on what you need today: a countertop reverse osmosis purifier, a compatible replacement filter, or a simple way to test water quality at home.

Main Purifier

Nova 100

For customers who want cleaner, better-tasting drinking water from a countertop reverse osmosis purifier without permanent plumbing changes.

Best for Homes, offices, flats, and rented spaces

Use case Everyday drinking water purification

Setup Countertop use with no permanent installation

View Nova 100

Replacement Filter

ROF2501

For customers who already use a compatible Other Water purifier and need a replacement reverse osmosis filter for routine maintenance.

Best for Compatible Other Water purifier systems

Use case Replacing the filter when maintenance is due

Purpose Supports continued purifier performance

View ROF2501

Testing Tool

TDS1

For customers who want to check TDS levels and compare tap water and filtered water before and after filtration.

Best for Home water quality awareness

Use case Testing and comparing water readings

Offer Included free with Nova 100 where offered

View TDS1

Customer Needs

Which Situation Sounds Like You?

These common buying situations help customers decide whether they need purification, replacement filtration, or water testing.

No permanent plumbing

I want filtered drinking water without drilling or under-sink installation.

A countertop reverse osmosis purifier is useful for homes, offices, flats, and rented spaces where a permanent setup is not preferred.

Filter maintenance

I already have a compatible purifier and need the right replacement filter.

Replacing the filter when maintenance is due helps support continued purifier performance and a consistent drinking water routine.

Water testing

I want to compare my tap water and filtered water at home.

A TDS test pen gives a simple reading that helps customers compare tap water and filtered water before and after filtration.

Shop FAQs

Common Water Purifier Questions

Answers to common questions customers ask when choosing between countertop reverse osmosis filtration, replacement filters, and TDS testing.

What should I look for in the best countertop reverse osmosis water purifier in the UK?

Look for simple setup, no permanent plumbing changes, practical filter replacement, clear product support, and water quality testing support. Nova 100 is designed for customers who want a countertop reverse osmosis option for everyday drinking water without complex installation.

What is the best water purifier for renters in the UK without permanent plumbing?

Renters usually need a purifier that avoids drilling, under-sink installation, or permanent plumbing changes. A countertop reverse osmosis purifier like Nova 100 can be a practical option for rented homes, flats, offices, and shared spaces.

Is a countertop reverse osmosis water purifier better than a water filter jug?

A water filter jug is simple and portable, but many customers choose countertop reverse osmosis when they want a more advanced filtration option for daily drinking water. Nova 100 is designed for customers who want a countertop water purification option without installing an under-sink system.

How can I test tap water and filtered water at home?

You can use the TDS1 Water Quality Test Pen to check Total Dissolved Solids in water. Customers commonly test tap water first, then test filtered water after using a purifier, so they can compare readings and better understand water quality changes at home.

When should I replace a reverse osmosis filter?

Reverse osmosis filter replacement depends on usage, water quality, and product guidance. ROF2501 is designed as a replacement reverse osmosis filter for compatible Other Water purifier systems.