Waterdrop

Waterdrop C1S Countertop CoreRO System

SKU: WD-C1S-N
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$259.00
In stock
Usually ships within 24 hours
Ships in 1-3 business days
Authorized dealer — all brands
No installation required

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The Waterdrop C1S CoreRO is a compact countertop reverse osmosis system that delivers purified water with zero installation — fill the reservoir and dispense. Its small footprint suits apartments, offices, dorms, and RVs.

Six filtration stages centered on a 0.0001-micron RO membrane reduce lead, chlorine, fluoride, arsenic, nitrates, PFAS, VOCs, and dissolved solids at a 400 GPD purification rate.

One composite filter handles about 12 months or 1,100 gallons before a quick swap.
  • Filtration Stages 6
  • Filter Technology activated carbon block, RO membrane, post carbon
  • Flow Rate 400 GPD
  • Contaminants Removed lead; chlorine; fluoride; TDS; arsenic; nitrate; sediment; VOCs; PFAS
  • NSF Certifications
    • NSF/ANSI 42, 53, 58 & 372
  • Lead Free
  • Filter Life 12 months or 1,100 gallons
  • Replacement Filter SKU WD-C1RF
  • Replacement Interval 12 months or 1,100 gallons

Shipping rates are calculated at checkout based on weight and destination. Most orders ship within 1-3 business days directly from the manufacturer's warehouse; ground delivery typically takes 3-8 business days.

See our Shipping Policy for full rate and delivery details. Questions? Contact contact@reinwaterusa.com.

Countertop water filtration systems include manufacturer warranty. Contact contact@reinwaterusa.com with proof of purchase for warranty support.