600GPD Under Sink Reverse Osmosis System - Waterdrop D6

SKU: WD-D6-B-FBM
Regular price $399.00
Out of stock
Free shipping on orders over $50
Authorized dealer — all brands
NSF certified systems available

Talk to a water expert

The Waterdrop D6 is a 6-stage tankless under-sink reverse osmosis system delivering 600 gallons of purified water per day. Certified to NSF/ANSI 42, 53, 58 and 372, it reduces PFAS, lead, fluoride, arsenic, chlorine, nitrate, TDS and heavy metals through its RO membrane core. The space-saving tankless design eliminates the bulky storage tank and delivers fast water flow on demand. Smart filter life monitoring keeps maintenance on schedule. Replacement filters available: WD-D6RF.

  • Filtration Stages 6
  • Filter Technology PP sediment, activated carbon, 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
  • Replacement Filter SKU WD-D6RF
  • Replacement Interval 12 months (RO membrane: 24 months)

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.