Suppliers of High Quality Japanese Koi and Products

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Water Purifiers

HILUX Purifier

HILUX Purifier


The high performance "HILUX" series is similar to systems used by the BKKS for their National Show since 1992 and by many other Sections and 1000s of koi-keepers, both professional and hobbyist throughout the UK. Designed exclusively for Purity on Tap and subjected to thorough independent evaluation to provide a spectrum of contaminant removal which other purifiers struggle to

KP2 Super Purifier

KP2 Super Purifier


THE KP2 SUPER is of similar design to the HILUX, being also fitted with the rated "SEDEX" pre-filter in our "Clearview" housing so that incoming particulate contaminants, so often toxic to aquatic species, can be monitored as they are trapped at this stage. The 'SEDEX' pre-filter is over 97% effective at 5 micron, thus being far more efficient than pre-filters

EA Dechlorinator Carbon In line filter 30 inch

EA Dechlorinator Carbon In line filter 30 inch


The new De-Chlorinator from EA is a quick and simple method of filtering-out harmful chlorine and other impurities from tap water. Ideal for first fills, water changes and top-ups. No need to wait for the chlorine to “gas off”, just fill up straight from the hose pipe.The De-Chlorinator uses Hi grade activated carbon which removes:Chlorine & ChloramineBromineMalachite Gre

AMFOR 150 US GPD Rated Reverse Osmosis Membrane

AMFOR 150 US GPD Rated Reverse Osmosis Membrane


AMFOR® reverse osmosis membrane elements are the most reliable, advanced membrane technology available, the automated fabrication allows these elements to keep consistent performance. AMFOR RO Membranes will out perform any other membrane found in the UK. Please do not confuse these genuine Amfor USA membranes with any other on the market here in the UK. These are the best membran

Purity on Tap is, today, the largest independent UK manufacturer of aquatic purification equipment.

In their Koi water gardening & Coldwater range they have a tremendous selection of purifiers to suit even the most demanding pond keepers needs.

The very water we drink, is not fit for Koi by any means.

Mains water contains Chlorine and many hard metals, that just simply are not healthy, or productive for a healthy and balanced nitrogen cycle. The water purifiers we offer are suited to the task of protecting our Koi from the harmful elements within our public water systems. They are, naturally, not intended for use as drinking water purifiers for human consumption.
To have effective water purification it is best to allow for very slow flow rates. The longer the water takes to pass through the purifier, the greater the benefits of the purification system. A flow rate of one to two gallons per minute should adequately remove any nasty impurities, and the water can safely be added directly into your filtration system or the pond.

The “CHLORNOMORE”
Chloramine is a very stable, hard-to-remove disinfectant and highly toxic to aquatic species which is now increasingly used by water utilities in public supplies throughout the UK.

Koi-keepers need to take great care to ensure that none of this compound reaches the pond as it can destroy the filter balance and seriously damage fish health.

Various media have been promoted to deal with Chloramine but all have suffered from limited effectiveness over any length of “life”.

Purity on Tap are therefore now happy to be able to offer the koi-keeper the new super-effective “CHLORNOMORE” cartridge.

This specially manipulated activated carbon, never before seen on the aquatic purification market, can out-perform a good activated carbon by anything up to ten times* for removal of this contaminant.

By substituting this for one of our “Short Travel” carbons, a hitherto standard cartridge replacement set for the KP, Protex and Metalex ranges can be upgraded to this much higher performance for only an extra £12.50.

It can also be used to upgrade all other makes using the standard 10” housings to an effective performance.


Water Purifiers

Keep your koi safe from chlorine with our innovative water purifiers, tremendous selection of purifiers to suit even the most demanding pond keepers needs.


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