See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for Naples families.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges handle the four filtration stages, and a UV chamber sits inline between them. There’s no bulky storage tank, so water is purified on demand—ideal for Naples kitchens where space matters.
The first cartridge catches rust, dirt, sand, and sediment—helpful for Naples homes dealing with scale and corrosion.
Carbon block media that takes out chlorine, odors, colors and chemicals before the membrane—great for Naples’ hard water challenges.
The heart of the system—rejecting dissolved solids and heavy metals and sending the concentrate to the drain, even with Naples hard water.
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—great for everyday Naples drinking water.
Filtration Stages
Each stage handles what the one before it left behind—especially helpful in Collier County, where hard-water scale can be a real issue. UV is the fourth step in the sequence, and the one stage that is not filtration at all—it’s there to deal with what a filter cannot catch.
Removes rust, dirt, sand, and large particles—great for Naples’ hard-water conditions.
Removes chlorine, odors, colors and chemicals—so your Naples water tastes clean.
Removes up to 99% of dissolved solids, heavy metals and more—helpful for Naples-area water quality concerns.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals for a balanced, healthy pH—ideal for everyday drinking water in Naples.
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, which is not filtration but disinfection—and it’s included in the price on every system we install in Naples.
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 Naples-area homes.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Naples homes.
2 UnitsInstalled
A lower price per unit on a two-system install for your Naples home
Ideal for a kitchen and wet bar—great for Naples guest suites, too.
3 or MoreInstalled
Our lowest per-unit price in Naples
For larger Naples homes, multi-unit properties, and light commercial spaces in Collier County.
All prices are installed and include UV sterilization, with no hidden fees. Not sure how many you need? We’ll walk your Naples property with you during the 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 for Naples homes.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM—results vary across Naples homes.
The lamp operates automatically based on water flow pressure, and can be adjusted—perfect for busy Naples households.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination—great for Naples kitchens.
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—less plastic headed to Collier County landfills.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Naples homes.

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

Fitted under your sink and commissioned by Naples-area water purification pros.

We test your water before and after—so you can see the difference in your Naples home.

No surprises—one low price includes everything.

Lower per-unit pricing when we install two or more in your Naples home.
Independent Testing
You do not 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 source water and household usage. We test your water during the visit, so you know exactly what you’re starting from in your Naples home.
Perfect For
Point-of-use purification means the water you drink and cook with in your Naples home is the water that gets purified.
Cleaner Water. Better Living. In Naples.
Installed by a Florida plumbing company trusted in Naples and Collier County—and we stand behind the work.
Built with premium materials for reliable, long-term performance in coastal Naples.
The built-in UV lamp is included in the price on every unit we install in Naples.
We stand behind our products and the quality of service we bring to Naples homes.
Join homeowners across Collier County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Naples.
Tankless purification as you draw—no storage tank, no waiting, and no warm Naples-cabinet hassles.
The built-in UV lamp helps eliminate bacteria, viruses, and microorganisms—beyond what a filter can catch.
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 Naples homes dealing with hard-water scale 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 in Naples
$995
Installed
Regularly