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?












![]() WD-C1H |
![]() WD-C1S |
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![]() WD-K19-H |
![]() WD-K19-S |
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Price | |||||
---|---|---|---|---|---|
Daily Production Rate | 75 GPD | 75 GPD | 100 GPD | 75 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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Display | Filter lifespan & Water volume & Water temperature | Filter lifespan & TDS & Water volume | Filter lifespan & TDS & Water volume & Water temperature | Filter lifespan & TDS & Water volume & Water temperature | Filter lifespan & TDS & Water volume |
Water Capacity Options | 5 | 5 | 5 | 5 | 4 |
Water Tank Capacity | 110 OZ | 110 OZ | 204 Oz | 170 Oz | 170 Oz |
Self-clean | √ | √ | √ | √ | √ |
Electricity Required | √ | √ | √ | √ | √ |
Need Installation | × | × | × | × | × |
Filter Cartridges |
WD-C1RF |
WD-C1RF |
WD-A1-CF WD-A1-RO |
WD-K19RF |
WD-K19RF |
Filter Lifespan | 12 Mths | 12 Mths | WD-A1-CF: 6 Months WD-A1-RO: 12 Months |
12 Mths | 12 Mths |
Dimensions (inch) | 15.6” *10.9” *17.0” | 15.6” *10.9” *17.0” | 18.3” *7.8” *17.1” | 15.51" * 9.2" * 17.56" | 15.51" * 9.2" * 17.56" |

- The filter can last at least 12months.