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Drinking water

Reverse Osmosis Systems for Twin Cities Homes

Point-of-use reverse osmosis produces a treated drinking-water stream at a dedicated kitchen faucet. Tank or tankless, professionally installed. A tank RO is included free with any whole-home system, and the tankless is a $200 upgrade.

City WaterWell WaterDrinking Water / ROComparePricing
G5.0 stars on GoogleNo pressure, no confusion. He consulted on our water, told us exactly what we needed, installed it the same week. That's it. Refreshing.Michelle R., HomeownerMore reviews

Quick answer

How Much Does a Reverse Osmosis System Cost Installed?

MSP Pure Water installs under-sink reverse osmosis drinking-water systems in the Twin Cities for $799 (tank) or $999 (tankless HW800 AlkaPro), including a dedicated faucet and professional installation. A tank RO is included free with any whole-home filtration system, and the tankless is a $200 upgrade.

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HW800 AlkaPro tankless reverse osmosis unit, white with black front panel, next to a chrome drinking-water faucet
$200 Upgrade With Any Whole-Home System

HW800 AlkaPro Tankless Reverse Osmosis

$1,699$999installed
Save $700
Every component NSF certified

Purified, alkaline drinking water on demand, straight from a dedicated faucet at your sink. No storage tank, 70% less under-sink space, and water treated the moment you ask for it.

  • Drinking-water Taste
  • Dissolved Solids (TDS)
  • Bottled-water Replacement

Why it leads the industry

  • 800 GPD capacity, 0.53 GPM on demand
  • Tested and certified by NSF International to NSF/ANSI 58
  • 2:1 low drain ratio, up to 6× less water waste
  • Alkaline remineralization for taste

Verified specifications

Filtration stages7
Filtering precision0.0001 micron
MembraneNSF thin-film composite, 95–99% rejection
Capacity800 GPD
Flow rate0.53 GPM
Configure & scheduleFull details

How it works

  1. 01
    Sediment and carbon block pre-filtration

    A 5-micron polypropylene pre-filter, then double NSF carbon block filters remove chlorine, chloramine, THMs and organic matter before the membrane (stages 1–3).

  2. 02
    800 GPD RO membrane

    A high-rejection (95–99%) NSF thin-film composite membrane, 0.0001 micron, reduces dissolved solids, heavy metals, microplastics, bacteria and viruses (stage 4).

  3. 03
    Alkaline remineralization

    An in-line coconut-shell carbon filter and an internal alkaline remineralizer add beneficial minerals back and balance pH (stages 5–6).

  4. 04
    Final polish, auto flush, DIY filters

    A second coconut-shell carbon filter polishes taste and odor (stage 7). Auto flush keeps the membrane clean; filters twist out by hand.

Tank reverse osmosis system: multi-stage filter bank with pressurized storage tank and chrome faucet
Included Free

Traditional Tank Reverse Osmosis System

$1,299$799installed
Save $500
Every component NSF certified

The proven PurePro 5-stage RO setup: purified water is produced continuously, stored in a pressurized steel tank, and delivered instantly the second you open the faucet.

  • Drinking-water Taste
  • Dissolved Solids (TDS)
  • Bottled-water Replacement

Why it leads the industry

  • 5-stage filtration, 94–99% TDS rejection
  • Instant delivery from pressurized storage
  • Corrosion-resistant steel shell, heavy-duty base
  • Compact footprint fits under most kitchen sinks

Verified specifications

Filtration stages5
Production100 GPD
TDS rejection94–99%
StoragePressurized tank, 11.5" × 16"
System size16" × 5.5" × 18"
Configure & scheduleFull details

How it works

  1. 01
    Sediment pre-filter (stage 1)

    A polypropylene sediment filter removes dirt, sand, rust and suspended particles to protect the system.

  2. 02
    Double carbon filtration (stages 2–3)

    Granular activated carbon and a carbon block reduce chlorine, odors and organic compounds while protecting the RO membrane.

  3. 03
    RO membrane (stage 4)

    A 100 GPD membrane reduces dissolved solids, salts, heavy metals and other contaminants.

  4. 04
    Post-carbon polish and pressurized tank (stage 5)

    A post-carbon filter polishes taste and odor; a pressurized storage tank keeps purified water ready the second you open the faucet.

What reverse osmosis does

A Finer Barrier for the Water You Drink.

Reverse osmosis pushes water through a semipermeable membrane under pressure. Water molecules pass; a broad range of dissolved solids is rejected and sent to drain. The treated water goes to its own faucet at the kitchen sink.

RO is a point-of-use method. It treats one location for drinking and cooking, not the whole house, which is why we pair it with whole-home filtration or softening and include it free with every whole-home system.

Tank or tankless, the RO faucet is the one your family will use fifty times a day.

Tank RO is $799 and the tankless HW800 AlkaPro is $999 on their own. With any whole-home system, the tank RO is included free and the tankless is a $200 upgrade.

Our work

Installed in Minnesota Homes

Real MSP Pure Water installations, not renderings.

MSP Pure Water tankless reverse osmosis unit installed under a kitchen sink
Tankless RO under the sink
Dedicated reverse osmosis drinking-water faucet installed beside the kitchen faucet
Dedicated RO drinking faucet
Tank reverse osmosis system with storage tank installed under a kitchen sink by MSP Pure Water
Tank RO under the sink
Tank reverse osmosis filter bank and storage tank installed under a kitchen sink by MSP Pure Water
Tank RO filter bank

Common concerns

Drinking-Water Questions We Hear Most

Taste

Residual chlorine, hardness and dissolved solids all affect taste. RO plus remineralization is the fix most homeowners notice first.

Bottled Water

A dedicated faucet replaces the cases, the clutter and the recycling.

Well Water

On a well, RO adds a second barrier for drinking water after whole-home treatment handles iron and hardness.

Best Price Guarantee

Find a Lower Quote on a Comparable System. We'll Beat It.

Find a lower quote on comparable equipment and installation and we'll beat it. Best-price customers get priority booking on the schedule.

How it works

Send us the competing written quote. We compare equipment, capacity and installation scope. If it's comparable and lower, we beat it, and you get priority booking on the schedule.

FAQ

Questions Homeowners Ask

How much does a whole-home system cost?
Every price is published on our pricing page. Whole-home city systems run $2,999 to $4,499 and well systems $4,499 to $5,999, with a reverse osmosis drinking-water system included free. Reverse osmosis on its own is $799 for the tank system or $999 for the tankless HW800 AlkaPro, a pre-sediment filter is $399 and a UV purifier is $899. Financing options are available, and travel fees may apply beyond 35 miles from Minneapolis.
What does reverse osmosis do?
Reverse osmosis pushes water through a semipermeable membrane that rejects a broad range of dissolved solids, then delivers the treated water to a dedicated faucet at your kitchen sink. It is a point-of-use system for drinking and cooking water, not a whole-home system, which is why we pair it with whole-home treatment.
Tank RO or tankless RO — what's the difference?
A tank system slowly fills a pressurized storage tank so purified water is ready instantly. A tankless system treats water on demand, takes up far less under-sink space and has no storage tank. The tank system is $799 and the tankless HW800 AlkaPro is $999 on their own. With any whole-home system, the tank RO is included free and the tankless is a $200 upgrade.
Can the reverse osmosis system feed my fridge or be installed in the basement?
Yes, with the tank reverse osmosis system. Every tank RO includes the standard installation: the unit under the kitchen sink feeding its own kitchen faucet. Each extra run beyond that is an additional fixture. One additional fixture is $500, for example a line to the refrigerator from under the sink, or a basement installation that feeds the kitchen faucet. Two additional fixtures are $750, for example a basement installation that feeds both the kitchen faucet and the refrigerator. The tankless unit delivers water on demand without a pressure tank, so it has to be installed under the kitchen sink.
Does the system treat every faucet?
Whole-home systems are installed where water enters the house, so every shower, faucet and appliance receives treated water. Reverse osmosis is the exception: it treats drinking water at one dedicated faucet.

All questions

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