Tankless RO · 600 GPD
WÜDR Tankless RO 600
WÜDR's 8-stage tankless reverse osmosis system. 600 gallons per day, a 2:1 pure-to-drain ratio and a smart faucet that shows TDS and filter life, in a slim under-sink unit.
- 8 stages with a 0.0001 μm RO membrane
- 600 GPD: a 6 oz cup in about 6.5 seconds
- 2:1 pure-to-drain ratio
- Twist-and-pull filter changes
Price: Confirmed in your quote, with installation.

Tankless RO, simplified.
The base model of the WÜDR tankless line: fast tankless flow and twist-and-pull filters, without the RO 800's extra stages and UV.
Inside the Tankless RO 600
Eight stages. Easy upkeep.
0.0001 μm membrane
Reverse osmosis at the heart of the eight-stage system, with an RO filter rated for up to 24 months.
600 gallons per day
Fills a 6 oz cup in about 6.5 seconds, with a 2:1 pure-to-drain ratio.
Smart display faucet
Shows TDS and filter life at the tap.
Twist-and-pull filters
Integrated waterway and quick filter changes.
Specifications
WÜDR Tankless RO 600 at a glance
| System type | Tankless under-sink reverse osmosis |
|---|---|
| Stages | 8 |
| Membrane | 0.0001 μm RO |
| Flow | 600 gallons per day (6 oz in about 6.5 s) |
| Pure-to-drain ratio | 2:1 |
| RO filter life | Up to 24 months |
| Dimensions | 18.11 × 5.67 × 17.73 in |
| Feed water | Municipal tap water; wells need pre-treatment |
| Operating pressure | 14.5 to 87 psi |
| Water temperature | 41 to 100 °F |
| Power | Electricity required; indoor use only |
| Price | Confirmed in your quote |
Filter life depends on your water quality and use.
Product image: WÜDR product render. Your written quote confirms the model, installation and warranty.
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6-stage RO with tankCommon questions
Does it need electricity?
Yes. Plan for an outlet in or near the sink cabinet. It is for indoor use only.
Can it be used on well water?
It is designed for municipal tap water as the feed. Well water needs testing and pre-treatment first.
What water pressure does it need?
14.5 to 87 psi, with water between 41 and 100 °F.
How is it different from the Tankless RO 800?
The Tankless RO 800 adds stages, UV, higher flow and a better pure-to-drain ratio. WÜDR sells the Tankless RO 800 with a remineralization filter bundle. See the comparison.
How much does it cost?
Your price is confirmed in your quote, with installation. We don't list prices online.