Waterdrop C1SL Countertop Reverse Osmosis System, 7-Stage Countertop Reverse Osmosis Water Filter, No Installation Required, 3:1 Pure to Drain, Reduce PFAS, BPA Free
Waterdrop C1SL Countertop Reverse Osmosis System, 7-Stage Countertop Reverse Osmosis Water Filter, No Installation Required, 3:1 Pure to Drain, Reduce PFAS, BPA Free
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Waterdrop C1SL Countertop Reverse Osmosis System, 7-Stage Countertop Reverse Osmosis Water Filter, No Installation Required, 3:1 Pure to Drain, Reduce PFAS, BPA Free

|22 ratings

Key item features

  • ‌[7-stage Filtration] This countertop reverse osmosis system is tested to reduce TDS, and more to transform tap water into purity and safety, then enriches it with alkaline minerals for optimal health NOTE: Do not work with well water or source water with high TDS (>500)
  • [Installation-free] This countertop RO water filter system's installation-free design makes it just power on and ready to get fresh water anytime. Its compact size and portable pure water pitcher can meet your daily water needs anywhere in the kitchen, bedroom, office, or even RV! You can also put the pitcher in the fridge to get cold water as you like NOTE:This product can filter room temperature water but does not have a heating function
  • [Easy to Use] This smart reverse osmosis water filter has an easy-to-use touch control screen, letting you adjust water volumes for your needs. Plus, its large capacity water tank can meet your whole day's drinking needs with less water change
  • [Efficient to Save More] The countertop water filter features a 3:1 pure to ratio, efficiently saving 4000+ bottled water per year for less water and plastic waste. Enjoy 12-month long-lasting protection with this 7-in-1 composite filter, which provides you with healthy water at less cost
  • [Flushing Process] After powering on, the system auto-rinses the filter. When the water tank indicator lights up and the screen shows 50%, empty the tank and refill it. Continue rinsing until the screen shows 100%, indicating the process is complete

Specs

Under-sink & countertop filtration system type, Countertop Filtration SystemFiltration stages, 7Brand, WaterdropFeatures, Multi FilterDimensions, 11.70 x 8.30 x 13.70 inRec. use, Residential

About this item

Product details

Waterdrop was founded in 2015 with a commitment to improving global drinking water quality. Dedicated to meeting global household water needs, ensuring water safety, and contributing to human well-being, Waterdrop provides filtered water access to people worldwide. 【NOTE】We are committed to providing the best value to our customers. If you purchase an item and find that the price of the product you purchased has been adjusted downward within 30 days of your purchase, we offer a price guarantee service to ensure you get the best price. For inquiries or to request a price adjustment, please feel free to contact our customer service team.
  • ‌[7-stage Filtration] This countertop reverse osmosis system is tested to reduce TDS, and more to transform tap water into purity and safety, then enriches it with alkaline minerals for optimal health NOTE: Do not work with well water or source water with high TDS (>500)
  • [Installation-free] This countertop RO water filter system's installation-free design makes it just power on and ready to get fresh water anytime. Its compact size and portable pure water pitcher can meet your daily water needs anywhere in the kitchen, bedroom, office, or even RV! You can also put the pitcher in the fridge to get cold water as you like NOTE:This product can filter room temperature water but does not have a heating function
  • [Easy to Use] This smart reverse osmosis water filter has an easy-to-use touch control screen, letting you adjust water volumes for your needs. Plus, its large capacity water tank can meet your whole day's drinking needs with less water change
  • [Efficient to Save More] The countertop water filter features a 3:1 pure to ratio, efficiently saving 4000+ bottled water per year for less water and plastic waste. Enjoy 12-month long-lasting protection with this 7-in-1 composite filter, which provides you with healthy water at less cost
  • [Flushing Process] After powering on, the system auto-rinses the filter. When the water tank indicator lights up and the screen shows 50%, empty the tank and refill it. Continue rinsing until the screen shows 100%, indicating the process is complete
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Specifications

Under-sink & countertop filtration system type

Countertop Filtration System

Filtration stages

7

Brand

Waterdrop

Features

Multi Filter

Warranty

Warranty information

Within the extended warranty period and with proper installation, use, and maintenance per the user manual, Waterdrop provides warranty coverage for defects in design, materials, or workmanship, excluding cosmetic defects. This service applies only to products purchased from Waterdrop U.S. official website. Product usage must meet the following conditions: - Inlet water pressure: 14.5-87 psi - Inlet water temperature: 41°F-100°F - pH value: 6.5-8.5 - Turbidity: < 1.0 NTU - Water source: municipal tap water (Well water requires pre-filtration.) - Water TDS: < 750 ppm - Water hardness: < 7 grains per gallon Note: Product specifications and usage recommendations are for reference only. Water quality may vary seasonally, and Waterdrop is not responsible for issues caused by such fluctuations or usage beyond stated limits. This extended warranty service does not cover: 1. Damage from incorrect installation, use, or maintenance. 2. Removed, altered, or unreadable serial numbers or labels of product. 3. Physical damage due to mishandling or accidents (such as impact, dropping, etc.). 4. Damage caused by accidents, misuse, abuse, fire, flood, electrical problems, or force majeure events. 5. Failures from abnormal voltage or water pressure. 6. Damage caused by over-high or over-low environmental temperatures, such as high-temperature damage or freezing. 7. Damage from unauthorized repair, disassembly, or modification. 8. Damage due to failure of filter replacement or product maintenance as the user manual requires. 9. Filters are consumables and not covered by this extended warranty service. Clogging and end-of-life from normal use are not covered by this service. 10. Products not bought via authorized Waterdrop channels. 11. Damage from using non-municipal water sources, such as well water and river water. 12. Damage caused by improper storage, installation, maintenance, operation, use, or modification, including but not limited to non-compliance with the requirements stipulated in the user manual and this service agreement. 13. Misusing the product for unreasonable, unintended purposes or those beyond the capabilities of product's reverse osmosis system. 14. Use of replacement parts, filters, or other accessories not sold or manufactured by Waterdrop on this product. 15. Damage caused by non-manufacturing defects during the period of use by a non-original purchaser. 16. Continued use of known defective products. 17. Other problems not caused by product design, material, or workmanship defects. User Obligations Please follow the user manual to keep the product in good condition and kindly make sure: 1. Cooperate with Waterdrop's customer service and provide information or evidence for product malfunction assessment as needed. 2. Package the product properly before sending it to the designated Waterdrop repair site to avoid further damage during transit. 3. Report any service defects or problems to Waterdrop within 30 days of discovery to avoid affecting your warranty rights. Termination of Extended Warranty Service This agreement terminates if: 1. The extended warranty expires. 2. If you're found to have intentionally damaged the machine before buying the service, it will end automatically, and no fees will be refunded. 3. During the service period, if Waterdrop replaces the machine of the same model or at the same price for the user, this service will terminate after the replacement. 4. If the machine tied to the extended warranty service participates in a trade-in or recycling program, the agreement will terminate. Waterdrop reserves the right to pursue legal liability against users fabricating accidents or malfunctions for improper benefits. Return and Transfer of Extended Warranty Service 1. If the product is returned within 30 days of purchase and free repair service has not been used, the extended warranty may be refunded. 2. This extended warranty service is non-transferable once purchased.

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Customer ratings & reviews

4.8 out of 5 stars
stars
22 ratings14 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars82% (18)
  2. 4 stars18% (4)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star0% (0)
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Showing 1-3 of 14 reviews

Jun 4, 2025
Reviewer name: Polly P.
5 out of 5 stars
5 out of 5 stars review

This system produces the

This system produces the best-tasting water. I didn't believe it would eliminate the well water taste, but it doesn't disappoint. We have completely stopped purchasing bottled water. I do not miss hauling those large, heavy packages of bottled water. The cold & hot water feature works perfectly. I highly recommend this product. The only drawback is that the tank that holds the water can be a little difficult to remove when the tank is ready to be refilled.

Review from Waterdrop
Helpful?5DR7H7LAXC1E20681956599
Mar 27, 2025
Reviewer name: Christine L.
5 out of 5 stars
5 out of 5 stars review

This machine solved my problem

This machine solved my problem for safe clean drinking water. I current rent and did not want a permanent solution installed in the home Iam in. When I saw this machine and its features I decided to give it a try. I've gone from dragging water bottles in the home weekly filled with fresh spring water to the convenience of filling the tank from my sink. Most of all, itis unbelievable what this machine filters out. The residue that sits on the water in the debris tank is beyond disgusting and really makes you think about the quality, or lack there of, of drinking water in America. Water drop, thank you for this solution and making my life easier!

Review from Waterdrop
Helpful?5DR7H7LAXC1E20681956599
Apr 24, 2025
Reviewer name: Deveron E.
5 out of 5 stars
5 out of 5 stars review

This thing works.. if you care

This thing works.. if you care about safe quality drinking water and don't want to worry about under the sink install. Than this is money well spent

Review from Waterdrop
Helpful?5DR7H7LAXC1E20681956599
Current price is $269.00
Price when purchased online
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