.wd-pure-to-drain-rate-box { position: relative; display: inline; cursor: pointer; } .wd-pure-to-drain-rate-hover { width: 14px; } .wd-pure-to-drain-rate { text-align: left; width: 375px; height: 145px; position: absolute; top: -153px; left: -13px; display: none; background: white; color: #000000; font-size: 14px; line-height: 21px; font-weight: 400; padding: 20px; box-sizing: border-box; border-radius: 5px; box-shadow: 0 0 2px 1px rgb(241, 239, 239); } .wd-pure-to-drain-rate-box:hover .wd-pure-to-drain-rate { display: block; } .wd-pure-to-drain-rate-three { position: absolute; width: 0px; height: 0px; border-width: 10px; border-style: solid; border-color: rgb(240, 240, 240) transparent transparent transparent; top: 145px; left: 10px; } .wd-pure-to-drain-rate-three-bottom { position: absolute; width: 0px; height: 0px; border-width: 10px; border-style: solid; border-color: rgb(255, 255, 255) transparent transparent transparent; top: 144px; left: 10px; } @media screen and (max-width: 1024px) { .wd-pure-to-drain-rate { width: 350px; height: 125px; top: -135px; left: -13px; font-size: 14px; line-height: 20px; padding: 13px; } .wd-pure-to-drain-rate-three { border-width: 10px; border-color: rgb(240, 240, 240) transparent transparent transparent; top: 126px; left: 10px; } .wd-pure-to-drain-rate-three-bottom { border-width: 10px; border-color: rgb(255, 255, 255) transparent transparent transparent; top: 125px; left: 10px; } } @media screen and (max-width: 768px) { .wd-pure-to-drain-rate { width: 350px; height: 125px; top: -135px; left: -13px; font-size: 14px; line-height: 20px; padding: 13px; } .wd-pure-to-drain-rate-three { border-width: 10px; border-color: rgb(240, 240, 240) transparent transparent transparent; top: 126px; left: 10px; } .wd-pure-to-drain-rate-three-bottom { border-width: 10px; border-color: rgb(255, 255, 255) transparent transparent transparent; top: 125px; left: 10px; } } @media screen and (max-width: 470px) { .wd-pure-to-drain-rate { width: 350px; height: 125px; top: -135px; left: -80px; font-size: 14px; line-height: 20px; padding: 13px; } .wd-pure-to-drain-rate-three { border-width: 10px; border-color: rgb(240, 240, 240) transparent transparent transparent; top: 126px; left: 77px; } .wd-pure-to-drain-rate-three-bottom { border-width: 10px; border-color: rgb(255, 255, 255) transparent transparent transparent; top: 125px; left: 77px; } } @media screen and (max-width: 425px) { .wd-pure-to-drain-rate { width: 332px; height: 117px; top: -126px; left: -80px; font-size: 14px; line-height: 20px; padding: 7px; } .wd-pure-to-drain-rate-three { border-width: 10px; border-color: rgb(240, 240, 240) transparent transparent transparent; top: 117px; left: 76px; } .wd-pure-to-drain-rate-three-bottom { border-width: 10px; border-color: rgb(255, 255, 255) transparent transparent transparent; top: 116px; left: 76px; } } @media screen and (max-width: 375px) { .wd-pure-to-drain-rate { width: 276px; height: 117px; top: -126px; left: -80px; font-size: 14px; line-height: 17px; padding: 7px; } .wd-pure-to-drain-rate-three { border-width: 10px; border-color: rgb(240, 240, 240) transparent transparent transparent; top: 117px; left: 76px; } .wd-pure-to-drain-rate-three-bottom { border-width: 10px; border-color: rgb(255, 255, 255) transparent transparent transparent; top: 116px; left: 76px; } }
Model
WD-K19-S
Installation
Not required
Pure to Drain Rate
3 : 1
Front Panel Display
Filter lifespan & TDS
Fliter Cartridges
WD-K19RF
Filter Lifespan
12 Months
Size(L*W*H)
13.8" *7.9”*16.3"
Feed Water Temperature
41-100 °F/5-38 °C
Daily Production Rate
75 GPD
Feed Water Requirement
Municipal Tap Water
Power
34W
Dispenser Voltage
100-240V
Rated Frequency
50/60 Hz
Feed Water TDS Level
TDS < 500
Warranty
1 Year
Technical Support
Technical Support
How often do I need to change the filter?
How to install the countertop RO water filter system
How to fill the RO water filter system with water?
Where should I put this water filter system?
Do I need to replace the UV lamp regularly?
Is this reverse osmosis water filter system unit suitable for well water?












![]() K19 Countertop RO System
| ![]() N1 Countertop RO System
| ![]() G3P800 Undersink RO System
| ![]() G3 Undersink RO System
| ![]() K6 Instant Hot RO System
| ![]() D6 Undersink RO System
| |
Need Installation | × | × | √ | √ | √ | √ |
---|---|---|---|---|---|---|
Beneficial Minerals | × | × | × | × | × | × |
Flow Rate | 75 GPD | 75 GPD | 800 GPD | 400 GPD | 600 GPD | 600 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. | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
Faucet | / | / | Smart display faucet | Smart display faucet | High-end Smart Touch Display Faucet | Smart faucet |
Display | Filter lifespan & TDS | Filter lifespan & TDS | Filter lifespan & TDS | Filter lifespan & TDS | water temperature & Filter lifespan & TDS | Filter lifespan & TDS |
Self-clean | √ | √ | √ | √ | √ | √ |
Holiday mode | √ | √ | √ | √ | √ | √ |
Electricity Required | √ | √ | √ | √ | √ | √ |
Filter | WD-K19RF | WD-N1-CF | WD-G3-N1CF | WD-G3-N1CF | WD-KJF | WD-D6RF |
Filter Lifespan | 12 Mths | CF-6 Mths MRO-18 Mths | CF-6 Mths CB-12 Mths RO-24 Mths | CF-6 Mths CB-12 Mths RO-24 Mths | MNR-12 Mths | MNR-12 Mths |
Dimensions(inch) | 13.8*7.9*16.3 | 17.1*7.0*17.8 | 18.11*5.67*17.72 | 18.11*5.67*17.72 | 18*17*7 | 15.98*5.98*11.97 |

- 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.
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