Ontap Water Filter Systems
- Solid Block Carbon+Ceramic Filters
- Removes Cryptosporidium+Giardia
- Removes Chemicals (Chlorine etc)
- Self-Install, no plumber required
- Fast Insured Royal Mail Delivery
- Free Filter Reminder Service
- Friendly Helpdesk Support
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System 1 - Complete System
System 2 - Complete System
System 1 - Conversion Kit
System 2 - Conversion Kit
System 1 - Replacement Water Filters
System 2 - Replacement Water Filters
What do System 1 Filters remove?
What do System 2 Filters remove?
How long do Filters last?
Can I fit the system myself?
Can I convert my tap to Ontap Filters?
How do I convert a Brita® Triflow tap?
Free Filter Reminder Service
Free Helpdesk for your enquiries
Fast Insured Delivery
Organic Filters & Ecological Design
Carbon Water Purification (Chlorine etc)
Ceramic Water Filtration (Bacteria/Cysts)
Chlorine: What the Experts say
Chlorine: The Risks
Water: Treatment
Water: Bacteria & Cysts
Water: 11 Amazing Secrets
Water: The Facts
Site Map

Drinking Water Filter Systems for Home & Office
- Complete Undersink Water Purification Systems (incl.tap)
- Replacement Water Filter Cartridges for Ontap Systems
- Kits to convert your Water Filter System to Ontap Filters
- Kits to convert Triflow taps & Fridges to Ontap Filters
- Drinking Water Filter Taps, Spare Parts & Fittings
Contact our Helpdesk (using your email system)

Ontap use organic water filters & an ecological design
Organic water filters
Ontap only use Carbon and Ceramic water filters. We do not use Ion Exchange methods and we do not use Reverse Osmosis systems as they remove the minerals from your drinking water that are essential to your good health. Our filters remove harmful chemicals and pathogenic organisms (bacteria & protozoan cysts) from your UK municipal water supply leaving your water clean, fresh, safe and a pleasure to drink.

Ecological design
The Carbon and Ceramic replacement water filters are removed from the outer housing when it is time to replace them. The outer housings are used again and only the replacement filters are recycled. This helps to minimise the amount of plastic waste in our environment.

Disposal / Recycling
The plastic spigot can be removed from the carbon filters and the old carbon filter can then be put on the Bar-B-Q, buried in the garden or recycled in the bin. The spigot from the ceramic filter can be snapped off and the filter can be broken up and buried in the garden or recycled in the bin.

We accept most major credit and debit cards via the easy-to-use PayPal card clearing system.
You can pay for your shopping securely through PayPal - and you don't have to join up.
PayPal is quick and easy to use and there are no charges for using the system.
For questions regarding products or postage, please email our Helpdesk.
You can pay through PayPal with your Debit or Credit Card without signing up
Our Water Filter Systems have a 1 year guarantee on all parts excluding filters.