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)

Convert Your Water Filter System, Triflow Tap or External Fridge Filter to Ontap Filters

There are many reasons to change to Ontap Water Filters:

  • You can't find where to buy the original replacement water filters
  • Ontap Filters are a better price than the original water filter cartridges
  • Ontap Filters are an ecological design (recyclable water filter elements)
  • Ontap Filters are of superior quality to your existing filters

Can I convert my water filter system or triflow tap to Ontap Filters?

Yes, you can use Ontap Filters in place of any Carbon or Ceramic filter as long as your system uses a 1/4", 5/16" or 3/8" plastic feed pipe.

Can I convert my refrigerator water filters to Ontap Filters?

Yes, you can use Ontap Filters to replace any external carbon or ceramic fridge filters that use a 1/4 ", 5/16" or 3/8" plastic feed pipe.

Is it easy to change over and will it take long to do?

Yes it is very easy. You mount the Ontap filter housing where your existing filter is. (you may even be able to use the existing bracket)
The filters link up with push-fit connectors. Easy as Lego®!

Is it expensive to convert?

No, the conversion kits, (filter housing, mounting bracket push-fit connectors and screws) cost less than the replacement filters. That is a one-off cost.

What is the difference between System 1 and System 2?
System 1 Filters remove:   See what System 1 Filters remove (click the BACK button to return to this spot)     System 2 Filters remove:   See what System 2 Filters remove (click the BACK button to return to this spot)

If you have any questions about converting to Ontap Filters or installing Fridge Filters, please drop a line to our Helpdesk and we will be happy to help sort them all out for you.

Select which Water Filter Kit you would like to know more about


- Our Ceramic Filters remove over 99.99% of Bacteria & Cysts from your water -
- The cost of protecting your family with a Carbon+Ceramic Filter System is less than 1p per Litre! -
- Our Systems can easily be installed in less than 45 minutes -

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.
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