400G Integrated Under Sink RO System Tankless Space Saving Design
This space-saving under-sink RO system features a 400G tankless design that delivers fresh water on demand. With an integrated four-stage filter cartridge and easy snap-in replacement, it offers a clean, low-maintenance solution for households. The compact build reduces shipping costs and supports optional upgrades like UV sterilization and mineralization for a customized water purification experience.
Key Features
- Tankless 400G design for fresh water on demand
- Integrated filter cartridge for easy replacement
- Compact under-sink installation saves space
- Optional UV, pressure gauge, and mineralization
- Low energy consumption and reduced shipping costs
- Upgradeable to non-electric configuration
Product Details







Why Choose Viano as Your Water Treatment Partner?
More Than a Supplier, Your Strategic Manufacturing Base in China
01 The Power of a Source Manufacturer
Founded in 2007 and headquartered in Hefei, Viano combines 15+ years of water purification expertise with massive production capacity. With 300+ skilled staff and an annual output of 400,000 sets, we are the heavy-duty engine behind your brand's global growth.

02 Market-Ready Standards & Recognition
We lower your market entry barriers by maintaining up-to-date international certifications. Our rigorous quality management system ensures that every water purifier delivered is fully compliant, reliable, and ready for your shelves.

03 Full-Service OEM/ODM: From Concept to Market
Unlock total flexibility with our integrated manufacturing. We support diverse customization options including logo branding, exclusive color schemes, and regional water quality adjustments. With our in-house mold center and certification support, we accelerate your time-to-market while ensuring strict confidentiality (NDA).

04 Inside Our Factory: Your OEM/ODM Powerhouse
Take a transparent look into Viano's manufacturing excellence. With in-house molding, food-grade injection, and 100% functional testing, we turn complex engineering into reliable water solutions for global partners.
 Precision Tooling Center 200+ Precision Molds | Rapid Prototyping Equipped with an extensive library of 200+ sets of precision molds, we support independent R&D and rapid prototyping, ensuring exclusive mold protection for OEM partners. |  Injection Molding Workshop 15+ High-Speed Injection Machines | Food-Grade Material Featuring 15+ advanced injection molding units, we produce 100% of our filter housings and water-contact components in-house. We strictly use food-grade raw materials to ensure structural durability and water safety. |
 Final Assembly Lines 4 Semi-Automated Lines | 50,000 Units Monthly Output Our facility houses 4 standardized assembly lines operating under lean manufacturing principles. With a monthly capacity of 50,000+ units, we ensure timely delivery for high-volume global wholesale orders. |  Commercial System Workshop High-Flow Commercial Systems | Adaptable to large-scale projects Specially designed for large-scale commercial RO systems. Our engineering team ensures these units providing stable performance for offices, schools, and hospitals. |
 Advanced Testing & QC Center Commitment to Quality | Testing at Every Stage Prior to packaging, every single product undergoes rigorous performance testing. Our laboratory simulates extreme operating conditions--including 500 PSI burst tests and salt spray analysis--to ensure that our products maintain reliable operation for years to come, regardless of the climatic environment. |  Filter Cartridge Workshop 3 Million Units Annual Capacity | 0.0001 μm Precision Our filter production line utilizes medical-grade membranes and premium carbon. With an annual output of 3 million cartridges, we maintain strict control over the core filtration media to guarantee a 95%+ salt rejection rate. |
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