The Waterdrop C1SL Alkaline Countertop CoreRO System delivers reverse osmosis filtration without under-sink installation. Simply plug it in for filtered water for everyday drinking and cooking.

Its 7-stage filtration system features a 0.0001 μm RO membrane to reduce PFOA and PFOS—two PFAS compounds—as well as lead, chlorine, sediment, and other impurities. Alkaline mineralization adds calcium, magnesium, potassium, and sodium after filtration to enhance water taste.

A 3:1 pure-to-drain water ratio helps limit wastewater, while the composite filter lasts up to 12 months and can be replaced in seconds. A smart touch screen offers six dispensing volumes, a TDS display, and filter-life reminders to simplify everyday use.

The 110 oz feed-water tank and removable purified-water pitcher provide a compact, portable alternative to a plumbed-in system.

Installation-free

Compact to fit everywhere

3:1

Pure Water Ratio

Save 1200% water

7-stage Filtration

0.0001μm RO filtration

Alkaline Minerals

Smart touch control

C1SL

is

Designed

For

Healthy Living

Suggested Family Size:

Still Struggle with
Poor Water

A countertop water filter to meet the needs of healthy drinking water for families.

HealthyCompactProtableCost & Eco

Instant to Get Pure Water

The ro water system offers instant filtration and fresh drinking water with no installation required. Simply plug it in and enjoy clean water anytime at home.

Click to fill the cup

00:00:00

Healthy Alkaline Water

Waterdrop reverse osmosis water filter adds beneficial minerals such as K, Ca, Na, Mg and adjusts your water's pH to an optimal 7.5± to make your water clean and healthy.

PH7.5+

0

4

7

10

14

Advanced 7-stage Filtration

This water purification system features 0.0001μm ro membrane to reduce TDS, PFOA, PFOS, Chlorine, Salt, Sediment, Lead, Odor, and more in your tap water.

More Features

Smart Touch Screen

You can easily choose from 6 water volume options for you, while the filter life reminder and TDS monitor ensure water quality.

Large Water Tank

110oz high-capacity tank can meet your drinking needs throughout the day without having to replace them frequently.

Composite Filter

7-in-1 filter is up to 12 months lifespan, greatly reducing your cost and replacement frequency. And you can easily replace in 3s.

Pure Water Tank

32oz capacity can meet your daily water needs anywhere in the kitchen, bedroom, office, or even RV ! You can also put it in the fridge to get cold water as you like！

Portable Pure Water Pithcer

Fits Refrigerator

Enjoy cold water as you like

Hydration at work

32oz capacity to meet your needs

Daily Using

Portable to use in everywhere

Installation

Just Power On

Fits any countertop without installation

Sustainability

Save 1200% Water

The countertop water filter features a 3:1 pure water ratio, efficiently saving 4000+bottled water per year for less water and plastic waste.

Compare
CoreRO

Compare CoreRO	C1SL   Add to Cart	C1S   Add to Cart	C1H   Add to Cart
Additional Features
Additional Features	Alkaline minerals and purification	Purification	Heating and purification
Pure Water Ratio
Pure Water Ratio	3:1	3:1	3:1
Water Tank Capacity
Water Tank Capacity	110oz+34oz (Pure Water Tank)	110oz+34oz (Pure Water Tank)	110oz+34oz (Pure Water Tank)
Pure Water Tank
Pure Water Tank	Portable	Portable	Portable
Display
Display	Water Volume	TDS & Water Volume	Temperature & Water Volume
Filter Lifespan
Filter Lifespan	C1RFG - 12 Months	C1RF - 12 Months	C1RF - 12 Months
Dimensions (inch)
Dimensions (inch)	11.7" x 8.3" x 13.7"	11.7" x 8.3" x 13.7"	11.7" x 8.3" x 13.7"
Alkaline minerals
Alkaline minerals	√	×	×
Instant Hot Water Dispenser
Instant Hot Water Dispenser	Room Temp	Room Temp	Hot Water