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)

System 1 Conversion Kit to fit:
Triflow taps & existing systems-Carbon Block Filters remove Chlorine & over 80 substances

A self-install Conversion Kit to replace your existing drinking water filter or Triflow Tap filter or external fridge filter. This filter kit fits neatly undersink and will remove Chlorine and other chemicals, bad tastes & odours & over 80 other substances from your water while leaving the essential salts and minerals that are important to good health and produces safe, clean, fresh drinking water.
(Kit circled in red in the picture below)
When the filter needs changing (after 6 months) the housing stays in place and just the filter element is replaced. The carbon block filter can be recycled in your garden or on your BAR-B-Q.

Chlorine is removed with a Carbon Block Water Filter

"Cancer risk among people drinking Chlorinated water is as much as 93% higher than among those whose water does not contain Chlorine."
- U.S. Council Of Environmental Quality
Chlorine is now generally acknowledged as being a major cause of many serious medical problems & it is wise to remove it from your drinking water at the point of use. Some of the known problems are listed below:
  • Miscarriage
  • Stillbirth
  • Stroke
  • Spina Bifida
  • Breast cancer
  • Kidney cancer
  • Bladder cancer
  • Bowel cancer
  • Lung damage
  • Impaired thyroid
  • Immune system breakdown
  • Heart disease / Heart attack
  • Low Sperm count
  • Fertility problems
  • Triggers asthma

GAC Carbon Block Water Filters - How they work

These advanced Carbon Block water filters have a nominal 3 micron rating and offer maximum absorption of Chlorine and other chemicals due to the large surface area (within the pores of the filter) that is approximately 14 times greater than normal loose fill GAC water filters and not subject to channelling which is a common cause of failure for regular GAC filters.
This under sink filtration system removes Chlorine plus Herbicides, Pesticides and many other dangerous chemicals and all particles over 3 microns in our water such as sand, silt, rust etc. This system produces crystal clear water straight from your tap with this excellent fresh water filter system - like bottled water but at a fraction of the cost.

Contents List: System 1 Conversion Kit (Part No: OTS1CO)
- Carbon Block Water Filter to remove Chlorine & other chemicals
- Filter Housing with O Ring, Mounting Bracket & Screws
- 2 x Push-fit Connectors
Filters last for 6 months or 2600 litres (whichever comes first) Running cost approx 0.5p / litre

System 1 Water Filter

System 1 Conversion Kit for Triflow taps & existing taps

Select Kit Qty:
Select Filter Qty:

Carbon Block Water Filter.

Chemicals (Chlorine, Bad Tastes, Odours etc).   See what System 1 Filters remove (click the BACK button to return to this spot)
£26.00 (incl. first filter).
4.00 - Any Qty.

Stop wasting money on bottled water. Install your own water filter system! (No plumber required)
Carbon filtration systems are fresher, more convenient and cost less than 0.5p per litre

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.
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Our Water Filter Systems have a 1 year guarantee on all parts excluding filters.
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