See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand—perfect for Conch Key’s tropical maritime lifestyle.
The Conch Key System
The whole system fits under your sink and connects with quick-connect fittings—ideal for Conch Key homes. Four quick-change twist cartridges handle the four filtration stages, with a UV chamber inline between them. There’s no bulky storage tank, so water is purified on demand instead of sitting and waiting.
The first cartridge catches rust, dirt, sand, and large particles before anything downstream sees them—great for coastal Keys plumbing.
Carbon block media that reduces chlorine, odors, colors, and chemicals before the membrane—helpful for Conch Key water.
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 the Keys.
Filtration Stages
Each stage handles what the one before it left behind—helpful in the Florida Keys where hard water and salty air can be tough on plumbing. UV is the fourth step and the one stage that is not filtration at all; it tackles what a filter cannot catch.
Removes rust, dirt, sand and large particles—helpful with hard water in the Keys.
Reduces chlorine, odors, colors and chemicals in Conch Key homes.
Removes up to 99% of dissolved solids, heavy metals and more—helpful with hard water in the Florida Keys.
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. It’s included in the price on every system we install in Conch Key.
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 Conch Key homes.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Conch Key homes.
2 UnitsInstalled
A lower price per unit on a two-system install in Conch Key.
Ideal for a kitchen and wet bar, a second kitchen, or a guest suite in Conch Key.
3 or MoreInstalled
Our lowest per-unit price
Great for larger Florida Keys homes, multi-unit properties, and light commercial spaces.
All prices are installed and include UV sterilization, with no hidden fees. Not sure how many you need for your Conch Key place? 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.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM.
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 in humid coastal homes.
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 Conch Key living.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Conch Key installs.

The built-in UV lamp is part of the price, not an upgrade.

Fitted under your sink and professionally commissioned in Conch Key.

We test your water before and after—so Conch Key customers can see the difference.

No surprises—one low price includes everything.

Lower per-unit pricing when we install two or more in your Conch Key home.
Independent Testing
You do not 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.
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 Florida Keys 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—especially with Conch Key municipal or cistern/rainwater systems. We test your water on the visit so you know what you’re starting from.
Perfect For
It goes in at the point of use, so the water you drink and cook with in Conch Key is the water that gets purified.
Cleaner Water. Better Living. In Conch Key.
Installed by a Florida plumbing company that knows Monroe County water—and stands behind the work.
Built with premium materials for reliable performance in Conch Key’s coastal conditions.
The built-in UV lamp is included in the price on every unit we install in Conch Key.
We stand behind our products and the quality of our work here in Conch Key.
Join Conch Key homeowners across Monroe County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking and cooking in your Conch Key home.
Tankless purification as you draw—no storage tank, no waiting, just on-demand water in Conch Key.
Built-in UV helps eliminate bacteria, viruses and microorganisms—extra peace of mind in the Keys.
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—perfect for Conch Key homes dealing with hard water and salty coastal air. 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 in Conch Key
$995
Installed
Regularly