H2O US3 High Capacity Undercounter Water Purifier


High capacity Under-sink Water Purifier.

SKU: US3 Category:


The US3 is installed Undercounter in the kitchen with a dedicated separate filter tap. This popular water purifier fits neatly under the sink and requires minimal space. The US3 is an upflow system with 1/4″ push-fit fittings for ease of install and cartridge replacement at end of life. Available as cartridge only for those with existing filter taps who wish to upgrade to a higher capacity, better value for money water purification system. Alternatively, the system can be purchased with full tap and fittings kit too. Full installation guide is included.

The unique 6-stage purification process provides longer contact time for maximum removal of bacteria, additives and contaminants. The Silver-impregnated Granulated Activated carbon can treat up to 85,000 litres of water with minimal maintenance – cartridges are changed every 24-36 months. See “WHY H2O” section of website for media breakdown and list of chemicals and contaminants removed.

The design and amount of media allow flow rates up to 3.8 lt/min, which saves time without reducing water quality.

This purifier performs best with municipal water. If you have a private water supply or water with high levels of sediment, please contact our team to discuss the best option prior to completing your order.

Valve option:


Brass Valve




Suitable for:

  • Under counter system for use with filter tap – separate filter faucet.
  • Easily adapts to Tri Flow and 3-Way filter taps.
  • High flow rate
  • High capacity
  • Popular for large families
  • DIY installation
  • Simple to maintain
  • Bacteriostatic – kills bacteria found in water whilst also prevents bacteria growth within filter.
  • Improves taste by way of pH enhancement.
  • Eliminates bad odours
  • Removes hundreds of chemicals and contaminants.
  • Recommended flow: 3.8 L/min
  • Maximum Expected Capacity:83,000 litres
  • Fittings: 1/4″ push-fit 
  • Longevity: Up to 36 mths
  • Sealed construction
  • Sediment pre-filter included
  • 6 Stage filtration & purification
  • Laboratory tested
  • 3 year warranty
  • Height 41.9cm
  • Width 10.2cm
  • Shipping weight: 3.6kg
  • Large families
  • Home owners
  • B&Bs & Guest Houses
  • Offices
  • Best quality water
  • Best value for money

Not suitable for:

  • Removal of salt
  • Replacing Reverse Osmosis

Additional information



Choose Tap:

None, Puro Standard, Cigno Deluxe, Dante 3-way, Valentino 3-way, Cascata 3-way

Valve Option:

None, Brass


There are no reviews yet.

Be the first to review “H2O US3 High Capacity Undercounter Water Purifier”

Your email address will not be published. Required fields are marked *