See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand—built for the humid, coastal Treasure Coast lifestyle.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings—ideal for many Treasure Coast homes, including areas with older plumbing. Four quick-change twist cartridges handle the filtration stages, with a UV chamber inline. There’s no bulky storage tank, so water is purified on demand instead of sitting and waiting.
First cartridge captures rust, dirt, and sand—helpful with older plumbing found in parts of the Treasure Coast.
Carbon block media that reduces chlorine, odors, colors, and chemicals—helpful with coastal taste/odor concerns.
The heart of the system, rejecting dissolved solids and heavy metals and sending the concentrate to the drain.
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—great for everyday Treasure Coast drinking water.
Filtration Stages
Each stage handles what the one before it left behind. UV is the fourth step in the sequence—and it’s not filtration at all. It’s there to address what a filter can’t catch, especially helpful when hurricane-season disruptions affect water quality.
Removes rust, dirt, sand, and large particles—common with older plumbing in some areas.
Removes chlorine, odors, colors, and chemicals for cleaner-tasting Treasure Coast water.
Removes up to 99% of dissolved solids, heavy metals, and more—helpful with moderate Treasure Coast water hardness.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals for a balanced, healthy pH.
Four filtration stages plus UV sterilization. Steps 1 to 3 and 5 are the four filtration stages; step 4 is the built-in UV lamp (disinfection, not filtration). It’s included in the price on every system we install across the Treasure Coast.
Pricing
The systems are identical—the difference is how many you have installed on the same visit. Every unit includes UV sterilization and professional installation across the Florida Treasure Coast (St. Lucie, Martin, and Indian River counties).
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Treasure Coast homes.
2 UnitsInstalled
A lower price per unit on a two-system install—great for multi-sink Treasure Coast homes.
Great for a kitchen and wet bar—ideal for guest spaces common in Port St. Lucie, Stuart, and Vero Beach homes.
3 or MoreInstalled
Our lowest per-unit price
For larger Treasure Coast homes, multi-unit properties, and light commercial spaces.
All prices are installed and include UV sterilization—no hidden fees. Not sure how many you need? We’ll walk the property with you during your Treasure Coast visit.
Technical Specifications
The SimPure ROULP-3012-400-T1, from the T1-400 series. A tankless build that produces up to 400 gallons a day on demand, so the water is made when you draw it rather than stored.
400 GPD
Production rate
1.5:1
Pure-to-drain ratio
1,057 gal
Per full cartridge set
99.99%
Maximum TDS reduction
The T1-400 series tankless under-sink reverse osmosis system.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM—results vary across the Treasure Coast.
The lamp operates automatically based on water flow pressure, and can be adjusted.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination—especially during hurricane-season disruptions.
One gallon of wastewater for every 1.5 gallons of purified water produced.
A complete set of cartridges is roughly the equivalent of 8,000 bottles of water—great for the Treasure Coast.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Treasure Coast installs.

The built-in UV lamp is included—no upgrade needed.

Fitted under your sink and commissioned by local Treasure Coast professionals.

We test your Treasure Coast water before and after so you can see the difference.

No surprises. One low price includes everything.

Lower per-unit pricing when we install two or more—ideal for multi-sink Treasure Coast homes.
Independent Testing
You don’t have to take performance on faith. The system has been tested by an independent laboratory against the recognised standard for reverse osmosis drinking water systems—reassurance that matters when water quality can change during hurricane season on the Treasure Coast.
Testing covers the removal of over 99.99% of more than 1,000 contaminants, including total dissolved solids such as fluoride, nitrates and nitrites; PFAS, PFOA and PFOS; heavy metals such as lead and arsenic; and chloride—ideal for coastal Treasure Coast water concerns.
Made by SimPure
SimPure is based in Seattle, Washington and has served the USA since 2006, with trained water specialists available for product support.
Reduction performance varies with source water and household usage. We test your water during the visit, so you know what you’re starting from here on the Treasure Coast.
Perfect For
Point-of-use install means the water you drink and cook with—right here on the Treasure Coast—gets purified.
Cleaner Water. Better Living. On the Treasure Coast.
Installed by a Florida plumbing company that’s served the Treasure Coast for years—and stands behind the work.
Built with premium materials for reliable, long-term performance in coastal Treasure Coast conditions.
Built-in UV is included in the price on every unit we install on the Treasure Coast.
We stand behind our products and the quality of our Treasure Coast service.
Join homeowners across the Florida Treasure Coast who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday life on the Treasure Coast.
The tankless design purifies as you draw—helpful during hurricane-season disruptions—no tank and no waiting.
The built-in UV lamp helps eliminate bacteria, viruses, and microorganisms—extra peace of mind for the Treasure Coast.
The Mr. Pure Water Under-Sink Reverse Osmosis System with UV Sterilization is a tankless point-of-use system that fits neatly under your sink with quick-connect fittings—great for Treasure Coast homes where coastal conditions and older plumbing can mean taste/odor and corrosion concerns. Cold water enters a PP sediment cartridge that catches rust, dirt, sand and large particles, then a CTO carbon block that takes out chlorine, odors, colors and chemicals. The reverse osmosis membrane removes up to 99% of dissolved solids and heavy metals, sending the concentrate to the drain at a 1.5:1 pure-to-drain ratio. A built-in UV lamp then kills 99.99% of bacteria, viruses and microorganisms—the one thing a filter cannot catch—operating automatically on water flow pressure. An alkaline and mineral stage finishes the water, putting beneficial minerals back for a balanced pH. Five stages in all—PP, CTO, RO, UV and alkaline—producing up to 400 gallons a day on demand, with no bulky storage tank to hold water, take up space or invite secondary contamination.
One Unit, Installed
$995
Installed
Regularly