HW800 AlkaPro Tankless RO
800 GPD, seven stages, and no storage tank under the sink.
A tankless reverse-osmosis system that produces filtered water on demand. Its compact design preserves cabinet space and includes a remineralization stage intended to improve taste after the RO membrane.

WHAT YOU GET
Features
- 800 GPD tankless reverse osmosis
- Seven filtration stages
- 0.0001-micron membrane specification
- Built-in alkaline remineralization stage
- Dedicated faucet in multiple finishes
- Owner-replaceable quick-connect cartridges
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 finish options |
| Cabinet space | No storage tank |
| Filter changes | Quick-connect cartridges |
| Monitoring | Faucet-mounted monitor |
| Pairs with | Any whole-home system or works on its own |
Installation and Upkeep
| Location | Under the kitchen sink or at the selected drinking tap |
|---|---|
| Connections | Dedicated faucet, drain saddle, and cold-water tie-in |
| Upkeep | Owner-replaceable quick-connect cartridges |
| Certification | NSF/ANSI 58 |
Get a Price for My Home
Tell us about your water and home. We’ll review the details and contact you about the appropriate next step.
Please do not include payment information or sensitive personal data. By submitting, you are asking Hey Water to contact you about your request. See our Privacy Policy.
What Reverse Osmosis Is Designed to Reduce
Reverse-osmosis performance depends on incoming water quality, pressure, cartridge condition, and installation. Confirm the target contaminants through water testing.
Start With Your Water and Your Home
We’ll review your water source, household demand, and concerns before recommending equipment.
