Smart Tankless RO Drinking Water System, 800G Large Flow Under Sink Water Purifier with PCB Composite Filter and RO Membrane
Product Overview
The 800G Tankless RO Water Purifier is a next-generation 800GPD tankless reverse osmosis water purifier designed for permanent under-sink installation in residential and light commercial kitchens. Eliminating the bulky storage tank of traditional RO systems, this system delivers up to 2 liters per minute of purified drinking water on demand — filling a glass in seconds, a pot in under a minute.
At the core of this RO Water Purifier is a dual-core filtration system combining a high-capacity PCB composite pre-filter and a precision 0.0001-micron RO membrane. Together they remove sediment, rust, chlorine, organic compounds, heavy metals, dissolved solids, bacteria, and viruses — delivering water that is clean, safe, and great-tasting straight from the tap.
Built with an integrated water-electricity separation architecture, smart pure water reflux technology to eliminate stale water, and a tool-free quick-release filter mechanism, this purifier is engineered for safety, convenience, and years of reliable daily service.
How It Works
PCB Composite Pre-Filtration
Incoming tap water first passes through the multi-layer PCB composite filter cartridge. This stage physically captures sediment particles, rust flakes, and suspended solids while activated carbon media adsorbs residual chlorine, unpleasant tastes, odors, and organic compounds. Pre-filtration protects and extends the service life of the downstream RO membrane.
0.0001 Micron RO Membrane Filtration
Pre-filtered water is pressurized through an 800GPD-rated reverse osmosis membrane. With a pore size of just 0.0001 microns — approximately 1/500,000 the width of a human hair — the RO membrane effectively rejects dissolved salts, heavy metals (lead, mercury, arsenic, cadmium), TDS, bacteria, viruses, and other microscopic contaminants. Only pure water molecules pass through.
Pure Water Reflux Circulation
During idle periods, the system automatically initiates a pure water reflux cycle that circulates purified water backward through the RO membrane. This prevents TDS creep and bacterial growth inside the membrane housing, ensuring the very first glass of water after hours of non-use meets the same purity standard as water drawn during continuous operation.
Direct Flow to Faucet
Purified water flows directly to the dedicated drinking water faucet without intermediate storage. The tankless design eliminates the risk of secondary contamination from stagnant tank water and the plastic taste often associated with stored RO water.
Product Specifications
| Parameter |
Specification |
| Model |
800G Tankless RO Water Purifier |
| Product Type |
Tankless Under-Sink RO Water Purifier |
| RO Membrane Capacity |
800 GPD |
| Purified Water Flow Rate |
Up to 2 Liters per Minute |
| Filtration System |
PCB Composite Filter + RO Membrane (Dual Core) |
| RO Membrane Pore Size |
0.0001 Micron |
| Water Efficiency Rating |
Up to 65 Percent (Pure-to-Waste Ratio) |
| Installation Position |
Under Kitchen Sink |
| Filter Replacement Method |
Tool-Free Push-Button Quick Release |
| Stale Water Prevention |
Smart Pure Water Reflux Technology |
| Safety Architecture |
Integrated Water-Electricity Separation |
| Connection Standard |
1/2 Inch Threaded Fittings |
| Faucet Included |
Yes (Dedicated Drinking Water Faucet) |
| Design |
Compact Modular, Space-Saving |
Key Advantages
| Benefit |
Technology |
User Experience |
| 800GPD High Flow Output |
Large-capacity RO membrane rated at 800 gallons per day |
Fill a 300ml glass in approximately 9 seconds. Cook, brew coffee, and fill water bottles without waiting for a tank to refill. |
| Tankless Space-Saving Design |
Direct-flow architecture eliminates the traditional 3-5 gallon storage tank |
Reclaim over 50 percent of under-sink cabinet space. No risk of bacterial growth in stagnant stored water. Cleaner, fresher taste. |
| Dual-Core Deep Filtration |
PCB composite pre-filter captures sediment, chlorine, and organics; 0.0001-micron RO membrane blocks heavy metals and microorganisms |
Two-stage protection ensures comprehensive contaminant removal. Pre-filter extends RO membrane life, reducing long-term replacement costs. |
| Zero Stale Water Assurance |
Smart pure water reflux system automatically flushes the membrane during idle periods |
Safe to drink the first glass in the morning and after returning from vacation. No "first cup dump" required. |
| 65 Percent High Water Efficiency |
Optimized membrane and flow path maximize pure water recovery while minimizing concentrate discharge |
Lower water bills and environmental footprint. Significantly better than the 25-30 percent typical of conventional RO systems. |
| Push-Button Filter Replacement |
Modular quick-release cartridge design with twist-and-lock mechanism |
Replace filters in under 30 seconds — no tools, no technician, no mess. The system is designed so anyone in the household can perform maintenance. |
| Water-Electricity Separation |
Physical isolation between all water-carrying components and electrical circuits |
Eliminates risk of electrical hazard from leaks. Meets the highest safety standards for household appliances. Peace of mind for families. |
| Proven Contaminant Rejection |
0.0001-micron precision rejects particles 500,000 times smaller than a human hair |
Effective reduction of lead, mercury, arsenic, cadmium, chromium, fluoride, nitrates, TDS, bacteria, and viruses — verified through independent testing. |
Why Choose This RO Water Purifier Over Conventional RO Systems
No Tank, No Compromise
Traditional RO systems rely on a 3-5 gallon pressurized storage tank that consumes substantial cabinet space and creates a reservoir where bacteria can multiply over time. This tankless direct-flow design eliminates the tank entirely — providing more storage space for your kitchen and fresher water with every pour.
Dual-Core Efficiency
The two-cartridge system is simpler to maintain than multi-stage systems with 3-5 separate filter housings. Fewer cartridges mean fewer replacements to track, lower annual maintenance costs, and quicker filter changes when needed.
Family-Ready Performance
Rated at 800GPD with a 2L/min flow rate, this purifier comfortably serves households of 4-8 people — handling simultaneous demands for drinking, cooking, coffee brewing, and pet water without slowing to a trickle.
Smart Water Management
The pure water reflux function and 65 percent efficiency rating represent significant engineering advances over first-generation tankless RO systems. Less water wasted, fresher tasting water, and longer membrane life — all automatically managed without user intervention.
Target Customers
Health-conscious families — Comprehensive contaminant removal for safe drinking and cooking water that children and elderly family members can rely on daily.
Apartment and condominium residents — Compact tankless footprint maximizes limited under-sink storage while delivering full-size RO system performance.
Kitchen renovators and home builders — Modern under-sink design with included faucet adds visible value to kitchen upgrades. Popular specification for mid-to-high-end residential projects.
Bottled water users seeking an upgrade — Unlimited purified water on demand at a fraction of the per-liter cost of bottled water delivery. Eliminate lifting, storing, and returning heavy water bottles.
Small offices and commercial kitchens — 800GPD capacity supports moderate commercial demand for coffee machines, ice makers, and food preparation requiring purified water.
FAQ
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Q1: Are you a manufacturer?
A: Yes. We are a leading water filtration manufacturer in China, recognized as an industry benchmark enterprise and a standards drafting unit. We have developed multiple generations of water filtration technologies and a full range of product series.
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Q2: Can we use our logo/brand?
A: Yes. We provide OEM and ODM services and have long-term partnerships with globally recognized brands such as iSpring and other leading international companies.
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Q3: Can you provide samples for quality testing?
A: Yes. Samples are available, and we offer them at preferential pricing for evaluation purposes.
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Q4: What is the delivery time for orders?
A: We have a monthly production capacity of up to 100,000 units. Lead time depends on order quantity, model selection, and packaging requirements, typically ranging from 7 to 35 days.
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Q5: Why should I choose BRISKSPRING?
We operate a fully integrated production chain covering industrial design, mold development, plastic injection, and copper component manufacturing. All core parts are produced in-house, ensuring stable quality and cost efficiency.
Most of our products are certified to international standards, including NSF, SGS, and RoHS.
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