Drinking Water Systems

Best Seller

HW800 AlkaPro Tankless RO

800 gallons a day, 7 stages, no bulky tank under your sink.

Tankless reverse osmosis that filters down to 0.0001 microns — fine enough to take out lead and other heavy metals, dissolved solids, chlorine and common contaminants. Because it's tankless, you get water on demand and your under-sink cabinet back.

Best for: Anyone who wants better drinking and cooking water

Reverse osmosisNSF/ANSI 58Dedicated faucet includedFive faucet finishes
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What you get

  • 800 GPD tankless reverse osmosis
  • 7-stage filtration at 0.0001 micron precision
  • Removes lead and other heavy metals, dissolved solids and chlorine
  • Coconut-shell carbon block post-filter for taste
  • Faucet color-matched to your appliances
  • Quick-connect fittings — filter changes you can do yourself

Full specifications

Key specifications

Type
Tankless, under-sink
Filtration stages
7
Production
800 GPD, made on demand
Flow rate
0.53 GPM
Filtration precision
0.0001 micron
Waste ratio
2:1
Remineralization
Built-in alkaline stage
Faucet
Dedicated, five finishes
Cabinet space
No storage tank
Filter changes
Quick-connect cartridges, DIY
Monitoring
Faucet-mounted monitor
Pairs with
Any whole-home system, or on its own

Installation, upkeep & warranty

Installation
Arranged with an independent licensed professional — dedicated faucet, drain saddle, cold-water tie-in
Location
Under the kitchen sink, or wherever the drinking tap goes
Upkeep
Owner-replaceable quick-connect cartridges
Certification
NSF/ANSI 58
RO system warranty
1 year
Labor warranty
1 year from date of purchase

Specifications from the manufacturer's documentation. Component brands and certifications are those of their respective manufacturers.

What reverse osmosis removes

  • Arsenic
  • Fluoride
  • Uranium and chromium-6
  • Sediment and dissolved solids
  • Nitrate and nitrite
  • Lead and heavy metals
  • Chlorine and disinfection byproducts
  • Mineral taste and odor

Pick a faucet that matches your kitchen

The drinking water faucet is the only part of this system you actually see, so it comes in five finishes. Tell us which when we pull your water report.

Brushed nickel faucet finish
Brushed nickel
Chrome faucet finish
Chrome
Brushed gold faucet finish
Brushed gold
Matte black faucet finish
Matte black
Oil-rubbed bronze faucet finish
Oil-rubbed bronze

Warranty

1 year

The RO system

1 year

Installation labor

5 years

Media and filter stages

Full warranty terms and exclusions →

A closer look

Whole-home water system installed in a garageSoftener and carbon tanks fitted at the point of entryUnder-sink drinking water system with dedicated faucetBrine tank and bypass valve on a finished installation

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