# VIOMI Vortex 8 PRO 800 GPD Tankless Under-Sink RO System

The VIOMI Vortex 8 PRO is a tankless under-sink reverse osmosis system listed with 800 GPD capacity, app control and a smart LED faucet. It may suit kitchens needing filtered water at a dedicated faucet and a refrigerator or ice maker, but installation requires a nearby outlet and drilled faucet and drain openings.

- [Original product page](https://best-deals.pro/product/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [View offer](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- Market: US
- Language: en-US
- Currency: USD
- Brand: VIOMI
- Model: Vortex 8 PRO
- Category: Home & Kitchen > Kitchen Appliances > Water Purifiers
- Price: 399.98 USD
- Previous price: 479.99 USD
- Discount: 17%
- Price checked: 2026-11-14T07:04:18.939Z
- Rating: 4.3 / 5
- Reviews: 47

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Listing claims 800 GPD capacity and 9-stage filtration, with a smart faucet display for TDS and filter life and app-based system information.
- The manufacturer says it can feed a refrigerator or ice maker through a separate line. Standard tubing for that connection is not included.
- Manufacturer-stated wastewater efficiency is a 3:1 pure-to-drain ratio.
- The listed dimensions may help assess under-sink fit, but installation also needs plumbing connections and an electrical outlet.

## Pros

- Tankless design and listed dimensions provide useful information for planning a compact under-sink installation.
- A smart faucet is listed to show TDS and filter life, while app control is claimed for system information.
- The manufacturer describes refrigerator and ice-maker line compatibility for buyers seeking filtered water beyond the main faucet.

## Cons

- Installation needs drilling for the faucet and drain, so it is not a no-plumbing setup.
- The system requires corded power, and the listing says it needs a dedicated outlet rather than a switched garbage-disposer outlet.

## Specifications

### Identity
- Brand: VIOMI
- Model: Vortex 8 PRO
### Filtration and capacity
- Listed capacity: 800 gallons
- Purification method: Carbon Block, Reverse Osmosis
- Filtration stages: 9-Stage Filtration
- Supported water TDS maximum: 800
### Power and installation
- Power configuration: Corded Electric
- Installation type: Under Sink
- Container type: Tankless
### Dimensions and installation
- Dimensions listed: 16.3"L x 5"W x 12.8"H
- Weight listed: 29 pounds
### Filters and operating conditions
- RO filter life: 2 years
- PCB filter life: 1 year
- Lower temperature range: 41 °F
- Upper temperature rating: 100 °F

## Before you buy

- Installation requires a standard outlet and drilled openings listed as 1"-1.5" for the faucet and 1/4" for the drain. Refrigerator or ice-maker connection tubing is not included, and faucet compatibility beyond the supplied faucet should be confirmed with customer care.
- The listing gives filter-life claims of 2 years for the RO filter and 1 year for the PCB filter. Actual replacement timing may depend on use and water conditions.

## In the box

- PCB filter, 2 (Included)
- RO filter, 1 (Included)
- Gray LED faucet, 1 (Included)
- PE tubing, 1 (Included)

## A good fit for

- Households looking for a tankless under-sink RO system with app and smart-faucet monitoring.
- Kitchens that can accommodate the listed dimensions, electrical connection and drilled faucet and drain openings.
- Buyers who want to connect filtered water to a refrigerator or ice maker and can provide separate tubing.

## Less suited to

- Renters or buyers who cannot drill faucet and drain openings or make plumbing changes.
- Installations without a suitable dedicated electrical outlet near the system.
- Buyers who need a system that includes tubing for the refrigerator or ice-maker line.

## Customer feedback

Customer feedback reports satisfaction with water quality and taste, and describes installation as quick and straightforward. This is encouraging for buyers who value drinking-water taste and a manageable DIY setup, but the system still requires drilling, plumbing connections and corded power. Aggregate ratings are generally positive, with a smaller low-star segment, so experiences are not uniformly favorable.
- Positive themes: Customer feedback highlights water quality and taste.
- Positive themes: Feedback describes installation as quick and straightforward.

## Frequently asked questions

### Does the VIOMI Vortex 8 PRO need a storage tank?
It is listed as tankless, so the supplied listing does not describe a storage tank.
### Can it connect to a refrigerator or ice maker?
The manufacturer says it can supply a separate refrigerator or ice-maker line. The standard tubing for that connection is not included.
### What installation work does it require?
The listing calls for a standard outlet and drilled openings for the faucet and drain. It also says the unit needs a dedicated outlet and cannot share a switched garbage-disposer outlet.
### How often do the listed filters need replacement?
The listing states 2 years for the RO filter and 1 year for the PCB filter. These are manufacturer claims, not a guarantee of replacement timing in every home.

## Alternative options

- [VIOMI Master M1 1000 GPD Alkaline Mineralized pH+ Reverse Osmosis System \| 9-Stage & 4-Year RO Water Filter, Reduces TDS, PFOA/PFOS, & Lead, NSF/ANSI 42, 58 & 372, Touchscreen Faucet & App Control](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [ANGEL X4 Tankless Reverse Osmosis System, 1000 GPD Under Sink RO Filter \| Certified to NSF/ANSI 372, Smart TDS & Filter Display, 0.66 GPM Fast Flow, 3:1 Pure-to-Drain Ratio, Up to 3-Year RO Filter](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [Waterdrop M6SL Mineral Reverse Osmosis Water Filter Countertop RO System \| NSF/ANSI 58 Certified, Reduce PFAS/TDS, 8-Stage Water Filtration System, 3:1 Pure to Drain, Installation-Free, Room-Temp](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [AquaTru Classic Smart Alkaline Countertop Water Purifier \| 4-Stage Reverse Osmosis Filtration System \| Certified to Reduce 84 Contaminants Like Lead, Forever Chemicals \| No Plumbing \| Adds Minerals](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [Waterdrop G3P600 Tankless Reverse Osmosis Water Filter System Silver Faucet \| NSF/ANSI 42 & 53 & 58 & 372 Certified, 8-Stage RO Water Filtration System Under-Sink, 2:1 Pure to Drain, Smart LED Faucet](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [3M Aqua-Pure Under Sink Reverse Osmosis Water Filtration System 3MRO301 \| Compact RO System Reduces Impurities For Clean Drinking Water](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [MIZUDO Megaflo 1200GPD Tankless Reverse Osmosis System, WiFi, Under Sink \| 9-stage RO filtration with a 3:1 pure-to-drain ratio and app control for household drinking water and kitchen preparation.](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [APEC Water ROES-PHUV75, 7-Stage Under Sink RO System, Alkaline & UV, 75 GPD \| NSF Certified 372, Reduces 99% of Impurities, Removes Arsenic and Lead, UV Filter, DIY Installation, Reverse Osmosis System](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [AquaTru Classic Smart Countertop Water Purifier \| 4-Stage Reverse Osmosis Filtration System \| Certified to Reduce 84 Contaminants Like Lead, Microplastics, Forever Chemicals \| No Plumbing](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [Filtrete Advanced Under Sink Quick Change Water Filter Replacement 3US-PF01 \| For 3US-PS01 System, Easy To Install, Under Sink Water Filter That Reduces Sediment, Microbial Cysts, Chlorine Taste & Odor](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [Bluevua RO100ROPOT-Lite Countertop Reverse Osmosis Water Filter \| 3:1 Pure to Drain Ratio, Portable RO Filtration with Remineralization, WQA & NSF Certified](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)
- [Waterdrop G6A8 Compact Alkaline Mineral Reverse Osmosis System, 800 GPD \| 800 GPD Fast Flow, 8-Stage RO Water Filtration System, 3:1 Pure to Drain, Compact Design for Tight Under-Sink Spaces](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)

## Add-ons

- [VIOMI V8 PRO RO Replacement Filter for V8 PRO 800GPD Reverse Osmosis System \| Advanced 0.0001μm RO Membrane Filtration, Reduces TDS / Lead / PFOA & PFOS, 2-Year Long Lifespan, Tool-free Installation](https://best-deals.pro/visit/viomi-vortex-8-pro-tankless-under-sink-ro-system)

## Images

![VIOMI Vortex 8 PRO 800 GPD Tankless Under-Sink RO System — 1](https://best-deals.pro/i/r2BccNESJjeZ8ehyh6noriofw3nM2KAXQ1mr43gkJjYP6ytxd0VNgR3RtbWIjMloufbaZxdirdw_pEKFn7jbRkQvqmRDPetjyojxzkDQ4QMkYrqbJgSL.jpg)

![VIOMI Vortex 8 PRO 800 GPD Tankless Under-Sink RO System — 2](https://best-deals.pro/i/O3LucmvdoL7ysmN37gfqXqMDpcMB98d0owUQfPLj7Y39jqU6Rnm8_sDZZWN6Y_z0xLmqPKK5QbF8G1TxnsjhlC2U8NayaSVVTfvpUaImog5vpVZJMyq1.jpg)

![VIOMI Vortex 8 PRO 800 GPD Tankless Under-Sink RO System — 3](https://best-deals.pro/i/eae2eq8SbmEUP4nyNFF-561udeu79cfb0iaMm6Af7zpf6hCrV5rErV9eNeg5jo6jssyYm_h25lzi7Rn58n6oOAJdh9vKnaTfcdRCCKp7cYg7E1Jhg2xP.jpg)

![VIOMI Vortex 8 PRO 800 GPD Tankless Under-Sink RO System — 4](https://best-deals.pro/i/VOhI6SssopI-NVcsFz_CuWdF3QFwd1ganCtMTFsWUVuCH8VdflgWXZ3All0cvWXOVuHSY6viA37wEIwBx0Sfb5IJ-Nsk4_Hgg86zrttRT7HPE9DWkllL.jpg)

![VIOMI Vortex 8 PRO 800 GPD Tankless Under-Sink RO System — 5](https://best-deals.pro/i/jjnXlWUz3f_xGn20fULqtJEz6R31NgBqDVWGgwrhdRT2lsANMiTW4ik_Wa8gjinv5YXWhuAmX00zCzvyLqAy-E8Ace7xVFbX1RVjV5meluSXlaav1Jw1.jpg)

![VIOMI Vortex 8 PRO 800 GPD Tankless Under-Sink RO System — 6](https://best-deals.pro/i/aXqDK5TdUHPacVCUyyXtfk_HGJQnM_s5cWtHAspGxOMDxVb0P-kTPfCTlCiEEW9OC82A7Qbbgy2rhF0qGNrZLBt_QGW24pCSP4-0NYVXqe-tUMuumE-n.jpg)

![VIOMI Vortex 8 PRO 800 GPD Tankless Under-Sink RO System — 7](https://best-deals.pro/i/_7IVNARkvAr0OmQK6lacOcRMfGBygc4y6dTPViROraHfIW2FGw7eiI6R0AnL7-D7eWSIbiswJOBMzEHzrH7g23ut0DmhmVFgU5Q-pLj_rqUxlQAeLHKq.jpg)