Waterdrop C1S Countertop CoreRO System

$199.00 $249.00 $50 Off

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6-Stage RO Filtration – Reduces TDS, PFOA, chlorine, lead, and more.

5 Adjustable Volumes – Dispense 4oz, 8oz, or 20oz with precision.

Smart Touch Control – Customizable modes, TDS alert when exceeding 150.

Compact & Detachable Tank – No installation needed, fridge-friendly.

Efficient & Long-Lasting – 3:1 pure-to-drain ratio, 12-month filter life.

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30-Day Worry-Free Returns

1-Year Warranty

24/7 Customer Support

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In Stock—Estimated delivery in 3-5 business days.
$199.00
$249.00 $50 Off
Waterdrop C1S Countertop CoreRO System
Waterdrop C1S Countertop CoreRO System
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NSF/ANSI 372 Certified

NSF/ANSI 372 Certified

99.94% lead reduction & 94.95% TDS reduction

5 Water Volume Options

5 Water Volume Options

6-Stage RO Filtration

6-Stage RO Filtration

0.0001μm RO filtration

Installation-Free, Plug & Play

Installation-Free, Plug & Play

Portable Pure Water Tank

Portable Pure Water Tank

Drinking Water Should Be Easy, Not a Trouble

Common water issues: slow fridge cooling, hot water needing tto cool, tricky under-sink filter installations, and costly bottled watter.

Compact Before
Compact After
Protable Before
Protable After
Healthy Before
Healthy After
Cost & Eco Before
Cost & Eco After
Instant Room-Temp Pure Water with 5 Volume Options Instant Room-Temp Pure Water with 5 Volume Options

Instant Room-Temp Pure Water with 5 Volume Options

Five water volumes to suit every need: from a 4oz espresso to an 8oz mug of coffee, or a full 20oz soup bowl, enjoy precise dispensing every time.

6-Stage Filtration 0.0001μm precision

6-Stage Filtration 0.0001μm precision

Reduces 99.94% of lead, TDS, PFOA, PFOS, fluoride, chlorine, copper, arsenic, and more impurities for cleaner, healthier water.* Tested by a third-party laboratory.

  • Smart Touch, Maximum Convenience

    Smart Touch, Maximum Convenience

    Save your preferred water volume with favorite mode. Stay informed with the filter life indicator and other user-friendly alerts for added convenience.

  • Portable Pure Water Tank

    Portable Pure Water Tank

    Stay refreshed with pure, chilled water. The detachable, compact pure water tank fits perfectly in your fridge, offering a 4-cup capacity for fresh, icy water whenever you want.

  • Quick 3s Filter Replacement

    Quick 3s Filter Replacement

    No tools required. Simply open the machine lid, twist, pull out the old filter, and insert the new one for a quick and easy replacement.

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Installation

Installation-Free, Plug & Play

Enjoy a hassle-free setup with no installation required. Simply plug it in and start using it right away for ultimate convenience and ease of use.

Less Waste, More Pure Water

Sustainability

Less Waste, More Pure Water

Enjoy more pure water with less waste. Our 3:1 pure to drain ratio ensures efficient filtration, giving you cleaner water with minimal waste.

  • Certification

    NSF/ANSI 372 Certified

    Protect family's health from lead

    TDS, PFOA, PFOS, Chlorine, Fluoride, Barium, Arsenic, Salt, Sediment, Chromium-VI, Lead, Microplastics, Odor and more

    A1 is NSF/ANSI 372 certified, ensuring it is made from lead-free materials for your safety and peace of mind.

  • Certification

    SGS Tested for Cleaner Water

    Reduced substances

    Lead, TDS, PFOA, PFOS, Fluoride, Chlorine, Copper, Arsenic, More impurities

    Claim of reduction verified by third-party laboratory testing.

    View the Report

REVIEW

Hear From Our Pros

Find out why professionals trust our filtration systems. Watch the video to see why it’s time for clean, refreshing water!

C1S
Specification
C1S
Model
C1S
Pure to Drain
3:1
Product Dimensions (In)
11.7" x 8.3" x 13.7"
Product Weight (Ib)
14
Certification
NSF/ANSI 372
Filtration
6-stage Filtration
Capacity
75GPD

In The Box (4)

User Manual
  • System x1

    System

  • C1RF Filter x1

    C1RF Filter

  • Water Tank x1

    Water Tank

  • Guide Book x1

    Guide Book

Compare   CoreRO

Compare
CoreRO

Waterdrop C1S Countertop CoreRO System

C1S

$199.00
$249.00 $50 off
Waterdrop C1H Instant Hot Water  Reverse Osmosis System

C1H

$239.00
$299.00 $60 off
Waterdrop Alkaline Countertop CoreRO System C1SL

C1SL

$269.00
Flow Rate
Flow Rate 75GPD 75GPD 75GPD
Alkaline Mineralization
Alkaline Mineralization × ×
Pure to Drain
Pure to Drain 3:1 3:1 3:1
Filter Lifespan
Filter Lifespan
Average Annual Cost
Average Annual Cost $59.00 $59.00 $69.99
Warranty
Warranty 1 Year 1 Year 1 Year
Certification
Certification NSF/ANSI 372 NSF/ANSI 58 & 372 Certified NSF/ANSI 58 & 372
Product Dimensions (In)
Product Dimensions (In) 11.7" x 8.3" x 13.7" 11.7*8.3*13.7 11.7" x 8.3" x 13.7"
Product Weight (Ib)
Product Weight (Ib) 14 14 14
Model
Model C1S C1H C1SL
Filtration
Filtration 6-stage Filtration 6-stage Filtration 7-stage Filtration
Capacity
Capacity 75GPD 75GPD 75GPD
Usage
Usage -Indoor -
Electricity Required
Electricity Required -Yes -

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Review

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Waterdrop users rave about the clean, crisp taste and health benefits of filtered water. Read their stories and see why they choose us.

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Trustpilot Review

FAQ

Curious about how the RO filter works? Our FAQ section covers everything from filter lifespan to installation tips for clean, pure water every day.

Contact Us

Does this countertop RO water system need to be drilled?

No ! You can use water filtration right away without needing to install it. Just plug it into a power outlet and it's ready to make clean water.

Is this water filter big? I have limited countertop space.

No, it's designed to be compact and small. It fits easily on your counter without taking up much room.

Does this purifier waste a lot of water?

No, it has a high 3:1 pure water ratio. It's efficient and wastes less water compared to other RO systems.

How often do I need to change the filters?

The filters last 12 months, so you won't need to change them often. This saves you money in the long run.

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