7-Stage Tankless Reverse Osmosis
HW800 AlkaPro
800 GPD · alkaline · tankless
Tankless reverse osmosis, made on demand at 800 gallons per day. No storage tank under the cabinet, a built-in alkaline stage so the water does not taste flat, and cartridges you can change yourself.
Reverse osmosisNSF/ANSI 58Dedicated faucet includedFive faucet finishes
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 | Included — 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 |
What reverse osmosis removes
- Arsenic
- Nitrate and nitrite
- Fluoride
- Lead and heavy metals
- Uranium and chromium-6
- Chlorine and disinfection byproducts
- Sediment and dissolved solids
- Mineral taste and odor
Faucet finishes
Brushed nickel · Chrome · Brushed gold · Matte black · Oil-rubbed bronze