- Plug and play:This countertop reverse osmosis system can be used directly through sockets in your
kitchen, bedroom, office, or even RV, with no installation or drilling required. If you are renting a home, this
RO system is unquestionably the best option.
Note: This RO system needs to be powered on to be used. - V-type heating technology Thanks to its superior filtration capacity and innovative heating technology, this reverse osmosis system K19-H can dispense hot water in 1 second and cannot produce limescale. Furthermore, because of its instant heating design, this system avoids reboiling, ensuring that every cup of water is pure and fresh.
- Custom water temperature&adjustable volume This instant hot water filter system comes with four volume options including 8 oz, 12 oz, 16 oz and 20 oz and can stop dispensing water once it reaches selected volume. This RO water filtration system K19-H not only comes with 4 temperature options (room temperature, 113℉, 185℉ and 203℉), but also allows temperature adjustment in the range of 122℉-194℉ at an interval of 9℉, meeting demands for water at different temperatures.
- 4-stage deep filtration & UV light Its 3-in-1 filter of this RO instant hot water dispenser is paired with a UV light and can effectively reduce TDS, chromium, PFAS, fluoride, arsenic, salt, heavy metals, nitrate, particles, chloride and other harmful substances through layer-by-layer fine filtration, ensuring every drop is purified.
- Smart design This instant hot water reverse osmosis system features an easy-to-use operating panel and a smart screen which displays the temperature, water volume, water filtration, flushing states, water quality, and UV light work states, and it also comes with a plateau mode. Additionally, this countertop RO system is equipped with a water shortage and dry burning reminder and a child lock to ensure the safety of you and your family.
- Saving more The K19-H countertop water filter system has an impressive 3:1 drain ratio, which reduces water consumption via a drainage recycling technology. Because of its 170 oz high-capacity water tank, frequent water refilling is avoided, and feed water and waste water can be separated. Furthermore, this composite filter only needs to be replaced once a year, saving you both time and money.

V-heating Technology
Using advanced heating technology with a 360° thick membrane for
concentrated heating, this system can provide instant heating in just one second and deliver hot
water at the desired temperature, meeting your needs for direct drinking or brewing.


UV Sterilizer
This UV sterilizer boasts a sterilization rate of up to 99.99%,
which reduces unnecessary risks from filtration to direct drinking and guarantees a supply of pure
water.
6-stage Deep Filtration
Its 6-in-1 RO membrane increases the membrane utilization rate, ensuring 0.001 μm fine filtration. Its 360° rotational water feeding provides a greater flow impact and anti-clogging capacity.



Adjust the Temperature as You Wish
With four common temperature modes, this system allows temperature
adjustment in increments of 9℉within the range of 112℉-194℉, meeting the demand for multiple water
temperatures.
Take Crisp Water at Will
With four customizable water volume options, you can easily control
the desired volume, making your life more convenient and enjoyable.


Start A Smart and Pure Life
Its smart screen displays water quality, filter lifespan and UV
work state on real time and will automatically turn off after 20 seconds of inactivity. There is a
plateau mode that can self-adjust the water temperature to meet various needs.
Separate Design of Raw and Waste Tanks
A raw water tank and a waste water tank are completely separated,
avoiding back flowing of wastewater. Its 5L high-capacity water tank comes with a pull handle and is
easily filled, meeting demands of a whole family for drinking water.


Safety Counts
The child lock function can avoid scalding by hot water because of
improper operation. Besides, this countertop RO water filter system comes with water deficiency
reminder and dry burn protection functions, which frees up your worries.

![]() G3P600 RO System |
![]() G3P800 RO System |
![]() K6 Instant Hot RO System |
![]() G2P600 RO Filtration System |
![]() K19 Countertop RO System |
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Need Installation | √ | √ | √ | √ | × |
---|---|---|---|---|---|
Flow Rate | 600 GPD | 800 GPD | 600 GPD | 600 GPD | 75 GPD |
Pure to Drain Rate
![]() Drain ratio stands for the ratio of wastewater and
purified water dispensed by a RO system. For example, the 3:1 drain ratio means it uses
up a gallon of wastewater for every 3 gallons of pure water you get.
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Faucet | Smart faucet | Smart faucet | Smart faucet | / | |
Display | Filter lifespan & TDS | Filter lifespan & TDS | Filter lifespan & TDS & Temperature adjustment | Filter lifespan | Filter lifespan & TDS |
Self-clean | √ | √ | √ | × | √ |
Holiday mode | √ | √ | √ | × | √ |
Electricity Required | √ | √ | √ | √ | √ |
Filter Cartridges |
WD-G3-N1CF WD-G3P600-RO WD-G3-N3CB |
WD-G3-N1CF WD-G3P800-RO WD-G3-N3CB |
WD-KJF |
WD-G2CF WD-G2P6MRO |
WD-K19RF |
Filter Lifespan | CF-6 Mths CB-12 Mths RO-24 Mths |
CF-6 Mths CB-12 Mths RO-24 Mths |
12 Mths | CF-12 Mths P6MRO-24 Mths |
WD-A1-CF: 6 Months
WD-A1-RO: 12 Months |
Dimensions (inch) | 18.11*5.67*17.73 | 18.06*5.65*17.75 | 6.7*17.5*16.6 | 17.32*5.91*13.9 | 13.8*7.9*16.3 |

WD-K19RF Replacement for K19 Countertop RO System
- Provides you with 12 months or 1,000 gallons of clean filtered water.
- Replace the water filter in 3 seconds with a single twist. No tools are required.
- Reduce most contaminants and improves the taste of water.
29.99
Total price: 29.99
Total price: 29.99