This compact under-sink RO water purifier is an innovative, space-saving water system engineered to deliver premium residential hydration. Featuring an ultra-compact footprint roughly the size of an A4 sheet of paper, it fits seamlessly under any kitchen sink. The system integrates advanced PPC + Reverse Osmosis (RO) filtration with a built-in UV sterilization lamp to effectively transform tap water into pure, safe drinking water. Driven by an energy-efficient 38W booster pump system and a 5L internal tank, this unit achieves a high-volume output comparable to a 400G system with a reliable daily output of 75–100 GPD. It serves as an ultimate, cost-effective OEM/ODM solution for modern homes and small-scale commercial applications.

• Ultra-Compact A4 Footprint: Innovative, space-saving design minimizes under-counter clutter, making it the perfect professional choice for limited kitchen spaces.
• High Flow Rate with 5L Built-in Tank: Integrated 5L purified water tank and powerful booster pump deliver an exceptional flow rate comparable to a larger 400G system, ensuring continuous water supply.
• Advanced UV Sterilization & Multi-Stage Filtration: High-efficiency PPC + RO composite filter cartridges paired with 24/7 internal UV-C disinfection ensure absolute water safety and a refreshing taste.
• Real-Time Smart TDS Water Quality Monitor: Equipped with an intuitive built-in TDS sensor that actively monitors water quality, providing clear, real-time performance tracking for peace of mind.
• Zero-Technician Quick-Twist Filter Maintenance: Proprietary twist-and-lock composite filter design allows for tool-free, effortless replacement in just seconds.

More Than a Supplier, Your Strategic Manufacturing Base in China.

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.

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.

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).

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.