1Six stages plus minerals
Six stages—PP, coconut carbon, RO membrane, post carbon, mineral and UV—cut TDS by up to 95%, and the mineral stage rounds out taste and pH.
- Home
- Products
- Kitchen
- Cooking appliances
- B100 Countertop RO Water Purifier
Pour in tap water, plug it in, done-6%CODE26BTS01B100
Hydrofast B100 Countertop RO Water Purifier
A reverse-osmosis purifier that sits on the counter with no plumbing. Fill the 4-litre side tank with tap water and it filters through six stages for room-temperature water, dispensed in 100, 250, 450 or 600 ml at a touch.
6%$281.06
Price with code · Geekbuying · as of 2026-10-09Code 26BTS01 · 6% off
max $20 · orders over $50 · until 2026-10-31
2No installation, just a counter
There’s no plumbing: you pour water into the side tank, so it works in studios, offices and RVs. The pure-to-drain ratio is 3:1.
3Set volumes at a touch
The touchscreen offers 100, 250, 450 and 600 ml shortcuts and ten preset amounts from 50 to 999 ml. It shows live TDS and filter life, and drops into standby when idle.
Key specs
- Filtration
- PP + CTO + RO + PCF + MIN + UV
- Water tank
- Raw 4 L · pure 1.3 L
- Water
- Room temperature
- Power input
- 110–240 V · 48 W
- Weight
- 5.3 kg
- Ships from
- US warehouse
Good pick if
- You rent and can’t touch the plumbing
- You’re tired of hauling bottled water
Think twice if
- You need chilled or hot water
FAQ
Is there a promo code?
Yes. Enter 26BTS01 at Geekbuying checkout when buying the Hydrofast B100 Countertop RO Water Purifier for 6% off. Conditions: max $20 · orders over $50 · until 2026-10-31.
Which voltage does it need?
The input is 110–240 V, so it works on most mains supplies. It ships from the US warehouse.
How often does the filter change?
It uses a single 5-in-1 cartridge that lasts up to 12 months, and it twists out in seconds.
Related products
Cooking appliances
-12%CODEcapitalone12
-12%CODEcapitalone12