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4.6 / 51,928 reviews
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Zip Water
The Zip HydroTap G5 Cube Plus is a 98°C boiling water tap from Zip Water, at a typical UK price of £3,693, a 3-litre tank and a 3-year warranty.
Specs last updated 17 June 2026
Cubed-spout flagship: boiling, chilled and sparkling filtered water
The G5 Cube Plus is Zip residential flagship in the Cube design line, delivering filtered boiling and chilled water plus standard hot and cold. Boiling is adjustable from 68°C to 99°C and chilled from 5°C to 15°C. The 0.2-micron MicroPurity filter is positioned by Zip as around 25 times more effective than a jug filter.
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Our take
The Zip HydroTap G5 Cube Plus is the boiling tap that you specify when budget is genuinely not the question. At £3,693 it delivers chilled and boiling water through a cube-shaped spout, with 0.2-micron filtration, a 3L tank, and the commercial-grade build that originally made Zip the standard fit in Australian offices before the brand crossed into UK domestic kitchens.
Filtration and engineering are what you pay for. The 0.2-micron filter is significantly finer than what Quooker, Qettle or Fohen offer, and it makes a measurable difference if your local water has chlorine taste or sediment. The cube spout is divisive on looks but engineered to the same standard as Zip's commercial range. The chilled function is properly cold rather than a token addition, and the digital interface gives real control over temperature and filter status.
Then there is the price, and the 98°C boil. £3,693 is roughly three times what Quooker charges for an equivalent function set, and the boiling dispense at 98°C still does not hit a true 100°C the way Quooker and Qettle manage. You are paying for filtration quality, the digital interface, and the brand badge that signals a high-end specification. Buy this in a £100K kitchen refurb where it makes sense in context, not as a standalone purchase.
Group tests
Sparkling and chilled
Running cost
Headline price is half the story. The Zip HydroTap G5 Cube Plus draws around 35 W at idle and reheats whenever the tank cools. Use the calculator with your own electricity tariff and household usage to see the 10-year total.
Installing soon? Installation costs and water hardness by UK city
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1,928 reviews
Read on TrustpilotRefreshed 15 May 2026
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