W15 RO water purifier without electricity, under-sink installation, 5 stages, 400GPD

The W15 RO water purifier is a compact water purification system that is installed under the kitchen sink. This reverse osmosis filter operates without electricity, using only water pressure, so it eliminates electrical safety risks and noise. The system removes over 1000 harmful impurities and provides clean, delicious drinking water for the whole family.

W15 RO water purifier - key features

• No electricity required — Integrated design saves up to 70% of space under the sink, operates using water pressure, without electrical circuits and noise.
• 5-stage filtration — Meets NSF standards, removes PFOA, PFOS, chlorine, lead, fluoride, and heavy metals, ensuring clean, odorless water.
• 0.0001 μm RO membrane The highly precise membrane retains even microscopic impurities, providing a fresh and smooth taste to the water.
• 400 GPD high flow rate Filters a cup of water in 10 seconds, suitable for large families, and the pressure gauge monitors the system's status in real time.
• 2:1 ratio of clean water Only one cup of wastewater is produced for every three cups of clean water, saving water and money.
• 15-minute quick installation Twice as fast as conventional tank systems; cartridge replacement takes only 60 seconds, and adapters and a faucet are included.

Technical specifications

• Model: W15
• Water output: 400GPD
• Device weight: 3
• Device dimensions: 400x150mm
• Package weight: 4KG
• Package dimensions: 450x250x250mm
• Power (W): 0
• Water quality requirements: city water supply
• Filtration technology: RO (reverse osmosis)
• Water temperature: 5-40°C
• Water pressure: 0.1-0.5 MPa (requires ≥1 bar pressure; 4-5 bar pressure is required to achieve 400GPD - please check before purchasing)
• Function: suitable for drinking directly
• Wastewater ratio: 2:1
• Installation location: water inlet end
• Package includes: 1 x UF ultrafiltration purifier 3000L (with cartridge), 1 x drain valve, 2 x flexible water hoses, 1 x transparent drain tube, 1 x instruction manual in English
• Important note: There are several variations of this listing - some are for the complete device with a filter cartridge, while others are only for replacement filters without the device. Please read the variations carefully before purchasing. A replacement filter cartridge cannot be used separately.

Who is it suitable for and how to use it?

The W15 waterless reverse osmosis filter is perfect for households that need a constant source of clean drinking water without additional electricity costs. The system is installed under the sink in 15 minutes, and cartridges are replaced in a minute. After the initial installation and each cartridge replacement, it is recommended to flush the filter cartridge with running water for 10-20 minutes to ensure optimal system performance.

Buyer questions

Q: Does the system require electricity?
No, the W15 system operates only with water pressure and does not require electricity. This avoids electrical safety risks and additional operating noise compared to electric systems.

Q: What water pressure is required for the system to operate?
A minimum pressure of 1 bar is required, but to achieve the full 400GPD performance, a pressure of 4-5 bar is needed. It is essential to check your home's water pressure before purchasing.

Question: How quickly can the filter cartridge be replaced?
Replacing the cartridge takes only about 60 seconds. After replacement, the cartridge should be flushed with running water for 10-20 minutes to ensure proper operation and water quality.

The W15 tankless reverse osmosis filter is an excellent choice for families looking for a quiet, electricity-free, and easy-to-install water purification system for their home.

Sources: Reverse Osmosis | TopSmart store

Customs duty and import taxes. This item ships from outside the European Union. When its value exceeds €150, customs duty and other import taxes may apply on import. They are not included in the item price and are payable by the buyer; the amount is calculated and collected by customs or the carrier.