Waterdrop Instant Hot Water Dispenser, Reverse Osmosis System, K6

SKU: WD-K6-W
Regular price $799.00
In stock
Usually ships within 24 hours
Free shipping on orders over $50
Authorized dealer — all brands
NSF certified systems available

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The Waterdrop K6 combines a 600 GPD under-sink reverse osmosis system with an instant-hot smart faucet, dispensing both purified cold water and near-boiling water at the sink. Tea, coffee, and cooking prep skip the kettle entirely.

Five filtration stages centered on a 0.0001-micron RO membrane reduce lead, chlorine, fluoride, arsenic, nitrates, PFAS, VOCs, and dissolved solids. The tankless design keeps the cabinet open and avoids storage-tank stagnation.

The composite filter is rated for 12 months or roughly 1,100 gallons, with a quick twist-out replacement.

  • Filtration Stages 5
  • Filter Technology activated carbon block, RO membrane, post carbon
  • Micron Rating 0.0001 micron
  • Flow Rate 600 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-KJF
  • Replacement Interval 12 months or 1,100 gallons

Free shipping on orders over $50. Most orders ship within 1–2 business days directly from our authorized suppliers. You'll receive tracking information via email.

Need it faster? Contact us for expedited shipping options: contact@reinwaterusa.com

All under-sink water filtration systems sold by Rein Water USA include manufacturer warranty. Crystal Quest systems carry a limited warranty — see product listing for terms. Brondell systems include a 1-year limited warranty on parts and labor, excluding consumable filters.

To make a warranty claim, contact contact@reinwaterusa.com with your order number and proof of purchase.