How to Measure Your Filter
Steps 1 & 2
Measuring Length and Width (L x W). (If your filter is not a square, the smallest measurement goes first).


Step 3
Measure the thickness (Depth) of your filter from front to back.

Step 4
Put Your measurements together (L x W x D).

Actual Size
A filter’s true dimensions.
Example: 19.75” x 19.75” x 1”
Nominal Size
Rounded numbers used by manufacturers.
Example 20” x 20” x 1”
View Detailed InstructionsAbout Waterdrop C1S Countertop CoreRO System

2X Reward Points on CoreRO system purchases. Redeem your points for a 10% coupon, replacement filters, and more.

Receive a 5% OFF coupon (exclusive for C1 replacement filter) with no expiration.
*The discount code will be sent via email within 3 days after the purchase of C1.

Extended 60-Day Return Period





5-stage RO Filtration.


Easy to Operate.
Adjustable and Convenient
Choose from 5 preset volume options or set a customized water volume to meet your pure water needs. Now you can enjoy a refined and unique drinking experience with this RO system.





Fits Every Countertop.

Installation-free Design
Put in anywhere you want

Kitchen

Living room

Office

RV

Protect the environment.


