Hydrofast C300 Sparkling RO Water Purifier

A six-stage RO purifier you fill by pouring water into its tank, with no plumbing. It dispenses 7 °C cold water and 40–95 °C hot water, and with a CO₂ cylinder fitted it makes sparkling water at three strengths.

~~$761.44~~

3%$741.44

Price with code · Geekbuying · as of 2026-10-09

Code 26BTS01 · 6% off

max $20 · orders over $50 · until 2026-10-31

Copy code & shop Geekbuying

~~$761.44~~3%$741.44Copy code & shop Geekbuying

1Sparkling water at a touch

It carbonates 7 °C water at three strengths. The CO₂ cylinder is sold separately and must be no taller than 36.8 cm.

The six stages: PP, ACF, RO, GAC, mineral and UV

2Six-stage RO filtration

PP + ACF + RO + GAC + mineral + UV stages cut TDS by up to 95%, with UV sterilisation running round the clock. The pure-to-waste ratio is 2.5:1, and the display shows live TDS for raw and filtered water.

Temperature choices from cold to boiling

3Pick the temperature and volume

Four presets — cold, room temperature, warm and boiling — plus 40–95 °C in 1 °C steps. Volume presets are 150, 250, 400 and 500 ml, or set 100–999 ml in 50 ml steps.

Key specs

Filtration: PP + ACF + RO + GAC + MIN + UV
Water types: Sparkling · cold · room temp · hot
Tanks: Raw 5 L · purified 1.5 L
Power input: 220–240 V · 1900–2200 W
Size: 450 × 270 × 445 mm
Ships from: Poland warehouse

Good pick if

You buy a lot of sparkling water
You can’t plumb in a purifier at home

Think twice if

Your counter is short on space
You don’t want to buy a CO₂ cylinder separately

FAQ

Is there a promo code?

Yes. Enter 26BTS01 at Geekbuying checkout when buying the Hydrofast C300 Sparkling RO Water Purifier for 6% off. Conditions: max $20 · orders over $50 · until 2026-10-31.

What’s in the box?

The purifier, a 5-in-1 composite filter, a user manual, a PET bottle, a drip tray and a dust cover. The CO₂ cylinder isn’t included.

Which voltage does it need?

It’s for 220–240 V only and draws 1,900–2,200 W.