Deluxe High Flow Under-sink Water Purifier | H2O US4 FB


High Capacity Undercounter Water Purifier.

SKU: US4-1 Category:


The US4 is ideally installed under the kitchen counter. Here it provides purified water with a separate faucet OR can even be installed directly inline on the main cold feed to the existing kitchen tap. Due to upflow design and high flow rate in excess of 7.6 litres per minute, this system can be used with either a prep bowl or main kitchen tap.

Available as upflow cartridge with 3/8″ push-fit fittings and fully integrated kit with tap and fittings – including saddleclamp, 3/8″ tubing, deluxe tap with fittings. Full installation guide included.

The unique 6-stage media bed provides a longer contact time for maximum removal of chemicals and additives. The  and Silver-impregnated Granular Activated Carbon can treat up to 132 000 litres of water with minimal maintenance – cartridges are changed every 36 – 60 months depending on water usage. See “WHY H2O” section  on website for more information on media breakdown and list of chemicals and additives removed.

The US-4 can feed 3 separate applications simultaneously within the kitchen area eg. filter tap, coffee machine, fridge freezer, ice machine, sink in utility room.

The best water purification system for commercial offices instead of a costly watercooler, or in a commercial kitchen for improved water quality to vending machines and catering equipment. Saves you money, more environmentally friendly and less hassle for maintenance teams.

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 options:


Brass Valve


1/4 inch Valve


3/8th Valve




Suitable for:

  • Under counter system for direct installations to existing tap
  • Can be installed with separate filter tap next to kicthen sink.
  • High flow rate allows for purified water through various applications in one kitchen area.
  • High capacity
  • Popular for large families
  • DIY installation
  • Simple to maintain
  • Most cost effective water purifier over the long term
  • Bacteriostatic – prevents bacteria growth and kills certain water borne bacteria.
  • Improves taste and enhances water by increasing pH levels
  • Eliminates bad odours
  • Removes hundreds of contaminants and additives including chlorine, heavy metals, VOC’s, THMs, hormonesand many more.
  • Recommended flow: Up to 7.6L/min
  • Maximum Expected Capacity:132 000lt
  • Fittings: 3/8″ push-fit fittings
  • Average Longevity: 36 – 60 mths
  • Sealed construction
  • 6 Stage filtration & purification with Riolyte for enhanced and remineralised drinking water.
  • Laboratory tested
  • Recommended Sediment pre filter for area with high sediment in water.
  • 3 year warranty
  • Height 41.9cm
  • Width 12.7cm
  • Shipping weight: 5kg
  • Large families
  • Home owners
  • B&Bs & Guest Houses
  • Offices
  • High flow rates
  • Inline installation to existing tap
  • Multiple supply points:
    • Kitchen water boilers
    • Ice machine
    • Fridge
    • Faucet

Not suitable for:

  • Removal of salty taste


Additional information

Weight 5 kg


Choose Tap:

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

Valve Option:

None, Brass, Pressure reducing valve (PRV) 1/4", Pressure reducing valve (PRV) 3/8"


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