Reverse Osmosis — Tankless (7-Stage)
Seven-stage reverse osmosis that makes water on demand at 800 gallons per day, with no storage tank taking up the cabinet.
Regular price$1,537Sale price$999
Installed
35% off — ends September 30, 2026
All prices are for a garage or accessible waterline install. Crawl space, attic, outside or trenching installs add a $399 minimum, quoted on-site before any work begins.
Key specs
- System
- Tankless RO
- Stages
- 7 + alkaline option
- Output
- 800 GPD
- Drain
- 2:1 pure-to-drain
- Warranty
- 1 yr system · 1 yr labor
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Full specifications
Key specifications
| Type | Tankless, under-sink |
|---|---|
| Filtration stages | 7, plus optional alkaline add-on |
| Production | 800 GPD, made on demand |
| Membrane | 0.0001 micron RO membrane |
| Pure-to-drain ratio | 2:1 |
| Faucet | Dedicated, five finishes |
| Cabinet space | No storage tank |
| Pairs with | Any whole-home system, or on its own |
Installation and upkeep
| Installation | Included — dedicated faucet, drain saddle, cold-water tie-in |
|---|---|
| Installed by | A licensed North Carolina plumber |
| Location | Under the kitchen sink, or wherever the drinking tap goes |
| Power | Standard outlet required under the sink |
| Filter changes | Quick-change cartridges with filter-life indicator |
What reverse osmosis reduces
- Total dissolved solids (TDS)
- Lead and heavy metals
- Fluoride
- Chlorine
- Sediment
- Taste and odor
Options, finishes and warranty
| Optional add-on | Alkaline remineralizer — adds back minerals and raises pH for a smoother taste |
|---|---|
| Faucet finishes | Brushed nickel · Chrome · Brushed gold · Matte black · Oil-rubbed bronze |
| RO system warranty | 1 year |
| Labor warranty | 1 year from date of purchase |
| With whole-home | Included free with every BluePeak whole-home system |
Installed at the sink
A real BluePeak reverse osmosis install: the dedicated drinking-water faucet at the kitchen sink. The faucet comes in five finishes; this one is brushed gold.
What it does
Reverse osmosis treats a small volume of water very thoroughly at one tap, for drinking and cooking. It reduces total dissolved solids, lead and other heavy metals, fluoride and chlorine, which is a different job from whole-home filtration.
The tankless build makes water on demand instead of storing it: 800 gallons per day, through a 0.0001 micron membrane with a 2:1 pure-to-drain ratio. There is no storage tank, so you keep your under-sink cabinet, and it does not run out partway through filling a pot.
Who it is for
Anyone short on cabinet space, or who would rather not have flow drop off as a storage tank empties. It needs a standard power outlet under the sink. The cartridges are quick-change, with a filter-life indicator that tells you when.
Both RO builds produce excellent water, so choosing between them is mostly about space and convenience; both are $999 installed. This system is included free with every whole-home system.
Alkaline remineralization is an optional $49 add-on, installed inline on the RO line. It adds calcium, magnesium and potassium back for a balanced pH and better taste, and the cartridge is replaced yearly.
Questions about this system
Tank-style RO or tankless RO — which one?
Both cost the same, $999 installed. Tank-style holds a reserve of filtered water and needs no power, but the tank eats most of your under-sink cabinet and flow drops as the tank empties. Tankless produces on demand at 800 gallons per day, gives you your cabinet back, and doesn’t run out during a dinner party. Both produce excellent water. It’s a space and convenience decision more than a quality decision.
What’s the difference between whole-home filtration and reverse osmosis?
Whole-home treats every drop entering the house — showers, laundry, dishwasher, ice maker. Reverse osmosis treats a small volume very thoroughly at one tap, usually the kitchen sink, for drinking and cooking. They’re complements, not competitors. Whole-home handles chlorine, sediment, iron and smell. RO handles dissolved solids and lead at the tap you drink from. That’s why every whole-home system we sell includes an RO system free.
How often do RO filters get changed?
Pre-filters and post-filters roughly annually, the membrane every two to four years depending on your water and your usage. We’ll tell you what your specific system needs and when.
What’s an alkaline remineralizer and do I need one?
Reverse osmosis removes nearly everything, including beneficial minerals, which leaves the water tasting flat to some people. A remineralizer adds a small amount of mineral content back and nudges the pH up. It’s a taste preference. Some people strongly prefer it, some can’t tell. It’s a $49 add-on on either BluePeak reverse osmosis system, installed inline on the RO line, and the cartridge is replaced yearly.
Start with a free water test.
We test at your kitchen sink and show you the results on the spot. If this is not the right system for your water, we will tell you which one is, or that you do not need one at all.
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