Description
High-flow tankless reverse osmosis system for offices, cafés and large homes
The RO400 is a tankless direct-flow reverse osmosis system designed for locations that need more purified water than a standard domestic RO unit can provide. It is suitable for small cafés, bars, offices, gyms, beauty salons, studios, waiting rooms and larger homes.
Thanks to the 400 GPD reverse osmosis membrane and integrated booster pump, the system produces up to 65 litres of purified water per hour, without requiring a separate storage tank. This makes the RO400 a practical solution where space is limited but daily water demand is high.
RO400 at a glance
- Product type: tankless direct-flow reverse osmosis system
- Capacity: up to 400 GPD / 1500 litres per day
- Flow rate: up to 65 litres per hour
- Best for: cafés, bars, offices, gyms, beauty salons and large homes
- Installation: under-sink, under-counter or wall-mounted
- Main advantage: high purified-water output without a storage tank
- Maintenance: uses widely available standard 10″ pre-filter cartridges
Who is the RO400 suitable for?
- Small cafés and bars: purified water for drinking, kettles, coffee machines and food preparation.
- Offices and coworking spaces: filtered drinking water for staff, customers and visitors.
- Gyms and beauty salons: reliable purified water for daily customer-facing use.
- Large homes: higher flow than compact under-sink RO systems with small tanks.
- Studios and waiting rooms: a compact solution where fresh purified water is needed throughout the day.
Main benefits of the RO400 direct-flow RO system
- Tankless design: purified water is produced on demand, without a storage tank.
- High capacity: up to 400 GPD / 1500 litres per day, suitable for repeated daily use.
- Integrated booster pump: helps maintain stable reverse osmosis performance even with lower inlet pressure.
- Compact installation: suitable for under-sink, under-counter or wall-mounted installation.
- Robust construction: metal chassis, stainless steel screws, pump and manometer.
- Lower maintenance cost: standard 10″ pre-filter cartridges are widely available and easy to replace.
- Flexible upgrade options: the system can be supplemented with a UV lamp, TDS controller or remineralising filter if required.
Filtration stages
The RO400 uses a 5-stage filtration process to reduce sediment, chlorine, odours, dissolved salts and many common impurities found in potable inlet water.
- Stage 1: Ionicore Blue antibacterial melt-blown polypropylene cartridge 10″ – 5 micron.
- Stage 2: Green Filter granular activated carbon cartridge 9-3/4″.
- Stage 3: Green Filter carbon block cartridge 2.5″ x 9-3/4″ – 10 micron.
- Stage 4: Ionicore TFC reverse osmosis membrane 3013 – 400 GPD.
- Stage 5: RO400 inline GAC post-filter 1/4″ OD stem 2″ x 10″ for final taste polishing.
Alternative third-stage cartridge: Pentek SCBC-10 silver carbon block cartridge 2-7/8″ x 9-3/4″ – 0.5 micron.
Technical specifications
- Flow rate: up to 65 L/h
- Daily capacity: up to 1500 L/day / 400 GPD
- Membrane: TFC 3013, 400 GPD
- Average NaCl rejection: >95%
- Recovery rate: >25%
- Maximum inlet salinity: 2000 ppm
- Working pressure: 1-4 bar
- Working temperature: 5°C-38°C
- Booster pump: B.N.Q.S DP-125-300S, 24 VDC, 3.6 A, 3.1 Lpm, 82 +/- 8 PSI
- Automatic flushing: 15 seconds
- Power supply: 220-240 V, 50/60 Hz, CE
- Rated power: 50 W
- System dimensions: H49 x W40.5 x D17.8 cm
What is included?
- RO400 reverse osmosis unit
- 400 GPD reverse osmosis membrane
- Booster pump
- Manometer
- Pre-filter cartridges and inline post-filter
- Installation tubes
- 1-way faucet with metal handle
- Installation kit
Installation and maintenance
The RO400 can be installed under a sink, under a counter or mounted on a wall using its sturdy metal base. The integrated pump helps the system operate even when the inlet water pressure is relatively low.
For best performance, filter cartridges should be replaced regularly according to inlet water quality and usage volume. In commercial environments such as cafés, offices, gyms and salons, maintenance intervals may be shorter than in a household installation.
Important water-quality note
This reverse osmosis system is intended for use with potable inlet water. It is not a device that makes any unknown or unsafe water automatically drinkable. Do not use the system with microbiologically unsafe water or water of unknown quality without adequate disinfection before and after the system.
For well water or poor-quality inlet water, professional water analysis and suitable pre-treatment are recommended. If desired, the system can be supplemented with a remineralising filter to improve final water balance and taste.
Complies with applicable requirements including UNE 149101 and Italian Ministerial Decrees 25/2012 and 174/2004, according to supplier documentation.
FAQ
Does the RO400 need a storage tank?
No. The RO400 is a tankless direct-flow reverse osmosis system. It produces purified water on demand, without a separate storage tank.
Is the RO400 suitable for a café, bar or office?
Yes. Its high flow rate makes it suitable for small cafés, bars, offices, gyms, beauty salons and larger households that need purified water throughout the day.
Can the RO400 be wall-mounted?
Yes. The sturdy metal base allows under-sink, under-counter or wall-mounted installation, depending on available space.
Which cartridges does the RO400 use?
The system uses standard 10″ pre-filter cartridges, plus a 400 GPD reverse osmosis membrane and inline post-filter. Standard cartridges help simplify maintenance and replacement.
Does reverse osmosis remove minerals?
Yes. Reverse osmosis reduces dissolved salts and many other substances. If desired, a remineralising post-filter can be added after the RO membrane.
* Some minor details may vary in different product versions.
This post is also available in: Italiano (Italian)
