Vortex 8 Tankless Under Sink Reverse Osmosis Water Purifier With Extra PCB Filter
- [Important Compatibility & Installation Note] This water purifier is designed to work exclusively with the faucet provided in the box and cannot be connected to other faucets, refrigerators, or ice-makers. Two holes are required for installation: one 1"-1.5" on the countertop for the RO faucet and a second 1/4" hole under the sink for the drain pipe. A standard dedicated electrical outlet is also needed.
- [NSF/ANSI 53, 42 & 372 Certified] The Viomi Vortex 8 Reverse Osmosis Water Filter System is rigorously tested and certified to meet NSF/ANSI standards. It is certified to reduce lead, as well as chlorine, bad taste and odor, all while meeting strict lead-free material safety requirements. Enjoy cleaner, better-tasting water with the confidence that every drop meets the highest safety standards for your whole family.
- [9-Stage Filtration System] The Viomi Reverse Osmosis water filter features a 0.0001μm membrane for superior purity. Certified to NSF/ANSI standards, it effectively reduces a wide range of contaminants including TDS, lead, fluoride, chlorine, microplastics, PFOA, and PFOS. Enjoy exceptional purity with TDS reduction of up to 90.35%, along with targeted reduction rates of PFOS >99.88% and PFOA >99.6%. The result is softer, great-tasting water that provides a reliable safeguard for your family's health and wellness.
- [800 GPD, 3:1 Pure-to-Drain] Get water on demand. The Viomi V8 RO system fills a 7oz cup in just 6 seconds, so you can drink instantly without waiting. The high flow rate also makes it ideal for washing fruits and vegetables. This system boasts an impressive 75% purification efficiency, outperforming the average 50% rate. Unlike traditional tanked systems, it achieves a 3:1 pure-to-drain ratio—meaning you get 3 cups of pure water for every 1 cup of wastewater. This not only saves you money but also reduces water waste for a more eco-friendly home.
- [Compact Tankless Design] Viomi RO water filter measures just 16.3"D x 5"W x 12.8"H, saving up to 65% of under-sink space—unlike bulky tanks—and fitting easily in most kitchen cabinets. You can complete installation in just 20 minutes using our simple 4-step video guide. Before purchasing, please measure your available under-sink space to ensure proper fit, accounting for existing items such as disposers, plumbing, or cleaning supplies.
- [4 Years Long-Lasting Filter & Easy Replacement] The Viomi 800G RO system includes two pre-installed filters (1 RO + 1 PCB) plus an additional PCB filter, providing a total filter lifespan of up to 4 years. No need to remember replacement schedules—the LED faucet glows orange when it's time. Replacing a filter is quick, easy, and requires no tools. Note: Actual filter life depends on your daily water consumption and usage.
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Product description
- Overview
- Specs
- Reviews
What’s Hiding in Your Daily Glass of Water?
Tap water can carry all sorts of hidden impurities—like dirt, rust, or industrial residues—that you don’t want ending up in your glass.
- Impurities
- Chemicals
- Plastic Bits
- Scale
What’s Hiding in Your Daily Glass of Water?
Many water systems use chlorine and other chemicals to disinfect water, but those leftovers can affect taste and potentially impact your health over time.
- Impurities
- Chemicals
- Plastic Bits
- Scale
What’s Hiding in Your Daily Glass of Water?
Microplastics have made their way into our water supply. They're tiny, invisible, and may build up in your body with long-term exposure.
- Impurities
- Chemicals
- Plastic Bits
- Scale
What’s Hiding in Your Daily Glass of Water?
Hard water can cause limescale buildup in your appliances and leave your skin feeling dry after showers. It's tough on both you and your home.
- Impurities
- Chemicals
- Plastic Bits
- Scale
9-Stage RO Complete Filtration
9-Stage RO Complete Filtration
PP Cotton
Effectively traps visible impurities such as rust, sand, and sediment right from the start, helping to protect the inner layers and ensure the longevity of your filter system.
Pre-activated Carbon
Absorbs chlorine, unpleasant odors, pesticides, and residual chemicals, significantly improving the taste and smell of your water while shielding the RO membrane from early damage.
Long-acting Scale Inhibitor
Reduces hardness by softening water and preventing scale buildup inside the system — a critical step in extending both the filter lifespan and your appliance’s performance.
Ultrafiltration Layer
Removes bacteria, colloids, and micro-sediments while preserving beneficial minerals, offering a balance between safety and nutrition — ideal for families and daily hydration.
Reverse Osmosis Membrane
At 0.0001-micron precision, it’s the powerhouse of purification. Removes heavy metals (like lead and mercury), nitrates, fluoride, viruses, and up to 99.99% of dissolved solids, ensuring water that’s truly clean and safe.
Non-woven Fabric
Acts as a precision support layer to maintain filtration structure and evenly distribute water pressure, while capturing any residual fine particles before the final purification steps.
Bamboo Charcoal
A natural and eco-friendly layer that adsorbs color, odor, and harmful organics, further enhancing water purity and clarity using nature’s own filtration powers.
Post-activated Carbon
Final touch to improve mouthfeel and taste — removes any remaining trace odors and volatile compounds for water that’s crisp, clean, and delicious.
Non-woven Fabric
Provides a final polishing stage to ensure only the purest water flows through, free of any micro-debris or leftover particulates — clean to the last drop.
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FAQs
Please read our FAQs page to find out more.
Q1: What are the benefits of a tankless RO system?
A: The tankless design saves 65% of under-sink space and prevents secondary pollution from a storage tank. Its compact size provides fresh, on-demand filtered water, fitting neatly into your cabinet without taking up valuable space.
Q2: How fast is the water flow about Vortex 8?
A: With an 800 GPD (Gallons Per Day) capacity, the system delivers a very fast flow. It can fill a 7-ounce cup with purified water in just 6 seconds, making it convenient for both drinking and cooking.
Q3: What contaminants does the Vortex 8 remove?
A: The 9-stage filtration system effectively reduces TDS, PFOA/PFOS, microplastics, chlorine, lead, and other heavy metals with a precision of 0.0001μm. Its performance is tested and verified by third-party labs like SGS for trusted purification.
Q4: How often do I need to replace the filters?
A: The included filters have a combined lifespan of up to 4 years, with the PCB filter typically replaced every 2 years and the RO membrane every 4 years; the intelligent LED faucet turns orange to remind you when it’s time, and the tool-free design lets you swap filters in seconds.
Q5: Is this water purifier certified for safety?
A: Yes, the system is tested against NSF/ANSI 53 and 372 standards. These certifications ensure the product adheres to strict public health and safety regulations for drinking water, guaranteeing its quality and your peace of mind.
Q6: How much wastewater does the system produce?
A: It features an impressive 3:1 pure-to-drain ratio, which is highly water-efficient. For every 3 cups of pure water it produces, only 1 cup of wastewater is generated, significantly reducing water wastage compared to typical systems.
Q7: What kind of water purification technology does the water purifier use?
A: The water purifier uses RO (reverse osmosis) technology to provide safe drinking water.Currently, there are 3 main types of household water filters, based on how finely they filter:
- Microfiltration (MF):
- Filters particles as small as 0.1–1 microns.
- Used for basic filtering—removes sand, rust, and other large particles from water.
- Does NOT remove harmful things like bacteria or viruses.
- Filter cartridges usually can’t be cleaned and need to be changed often.
- Common water filter jugs use microfiltration.
2. Ultrafiltration (UF):
- Filters particles as small as 0.01–0.1 microns.
- Can remove rust, sand, suspended solids, some bacteria, and colloids.
- CANNOT remove heavy metals.
3. Reverse Osmosis (RO):
- Filters particles as small as 0.0001 microns, offering the highest level of filtration.
- Removes rust, sand, suspended solids, colloids, bacteria, viruses, heavy metals, scale, and organic substances.
- Commonly used to make purified water, industrial-grade ultra-pure water, and medical-grade ultra-pure water.
Q8: Why is there black water when using pure water for the first time?
A: During shipping, small amounts of carbon dust can form inside the carbon filter. When you use the purifier for the first time, the dust is washed out with both clean water and wastewater, causing the water to appear slightly black at first.This is normal and will go away after you run water through the purifier a few times.
Q9: Why can't the pure wastewater ratio reach 3:1?
A: The pure/wastewater ratio usually refers to the proportion of pure water to wastewater.This ratio can be affected by the following factors:
- Water Temperature: If the water is colder than 25℃, you get less clean water and more wastewater. If it’s warmer than 25℃, you get cleaner water. But water shouldn’t be hotter than 38℃ or colder than 5℃, as that can damage the filter.
- Water Pressure: If the water pressure is below the standard 0.2MPa, the lower the pressure, the lower the recovery rate, which can also lead to more waste water than pure water.
- Poor Tap Water Quality: High levels of contaminants increase the risk of filter clogging, resulting in a lower recovery rate.
- Expired Filter Life: Over time, filters trap many contaminants, leading to clogging and consequently a lower recovery rate.
In short, cleaner tap water, good water pressure, the right water temperature, and a fresh filter help you get more clean water from your purifier.
Q10: Why is there the sound of a motor running (machine vibration sound) when making water?
A: Water purifiers are designed to give you fresh, clean water as soon as you need it. That’s why they use a powerful pump to quickly push water through the filters.