See the purity and trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand—great for warm, humid Tavernier days year-round.
The System Itself
Built for Florida Keys homes: the system fits under your sink with quick-connect fittings. Four quick-change twist cartridges handle the filtration stages, with a UV chamber inline for disinfection. No bulky storage tank—water is purified on demand instead of sitting and waiting.
The first cartridge catches rust, dirt, sand, and larger particles before they move downstream.
Carbon block media that reduces chlorine, odors, color and chemicals before the membrane—great for changing water conditions after coastal storms.
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.
Filtration Stages
Each stage handles what the one before it leaves behind—helpful in Monroe County where hard water can contribute to scale. UV is the fourth step in the sequence and the one stage that is not filtration at all; it’s there to address what a filter can’t catch.
Removes rust, dirt, sand and large particles—helpful after coastal storms.
Reduces chlorine, odors, color and chemicals—helpful when water quality shifts after storms.
Removes up to 99% of dissolved solids, heavy metals, and more.
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 for disinfection—extra peace of mind in the Keys when boil-water advisories pop up after hurricanes.
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 for Tavernier and Plantation Key homes.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Tavernier homes.
2 UnitsInstalled
A lower per-unit price when you install two systems at the same Tavernier property.
Great for a kitchen and wet bar, a second kitchen, or a guest suite in the Keys.
3 or MoreInstalled
Our lowest per-unit price in the Keys
For larger Keys homes, multi-unit properties, and light commercial spaces in Monroe County.
All prices are installed and include UV sterilization, with no hidden fees. Not sure how many you need for your Tavernier home? We’ll walk the property with you.
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 for Tavernier homes.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM.
The UV lamp operates automatically based on water flow pressure, and can be adjusted.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination.
One gallon of wastewater for every 1.5 gallons of purified water produced.
One full cartridge set is roughly the equivalent of 8,000 bottles of water—less plastic in Monroe County.
One Unit, Installed in Tavernier
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for your Keys home.

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

Fitted under your sink in Tavernier and commissioned by our pros.

We test your Tavernier 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 larger Keys homes.
Independent Testing
You don’t have to take the performance on faith. The system has been tested by an independent laboratory against the recognised standard for reverse osmosis drinking water systems.
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.
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 your source water and household usage. We test your water during the visit—especially important in Tavernier where conditions can change after storms.
Perfect For
Point-of-use purification—so the water you drink and cook with in Tavernier is the water that gets treated.
Cleaner Water. Better Living in the Keys.
Installed by a Florida plumbing company that knows Keys conditions—and stands behind the work.
Built with premium materials for reliable, long-term performance in the Florida Keys.
The built-in UV lamp is included in the price on every unit we install in Monroe County.
We stand behind our products and the quality of our work here in Tavernier.
Join homeowners across Monroe County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Tavernier.
Tankless purification as you draw—no storage tank and no waiting, even in humid Keys weather.
Built-in UV helps protect against bacteria, viruses, and microorganisms—extra peace of mind after storms.
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—ideal for Keys kitchens where space matters. 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, helping fight Tavernier’s hard-water scale, 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 in Tavernier
$995
Installed
Regularly