See the purity, trust the technology. This tankless under-sink system delivers ultra-pure, clean, refreshing water on demand—ideal for South Florida living near Lake Okeechobee.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges provide the four filtration stages, with a UV chamber inline. There’s no bulky storage tank, so you get purified water on demand—great for South Florida heat and daily hydration.
The first cartridge traps rust, dirt, and sand—helpful with mineral-heavy groundwater around the Lake Okeechobee area.
Carbon block media that reduces chlorine, odors, colors, and chemicals before the membrane—ideal for mineral-heavy local water.
The heart of the system—rejects dissolved solids and heavy metals, sending the concentrate to the drain (helpful with hard, mineral-heavy water).
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—great for everyday drinking in Hendry County.
Filtration Stages
Each stage handles what the one before it left behind—especially helpful with the mineral-heavy, hard water common around the Lake Okeechobee area. UV is the fourth step and the one stage that is not filtration at all; it handles what a filter cannot catch.
Removes rust, dirt, sand, and large particles—great for hard, mineral-heavy water.
Reduces chlorine, odors, colors, and chemicals from your South Clewiston tap.
Removes up to 99% of dissolved solids, heavy metals, and more—helping cut down scale from hard water.
Kills 99.99% of bacteria, viruses and microorganisms.
Adds beneficial minerals back 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 South Clewiston.
Pricing
The systems are identical—the difference is how many you have installed on the same visit in South Clewiston. Every unit includes UV sterilization and professional installation.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most South Clewiston homes.
2 UnitsInstalled
A lower price per unit when you install two systems.
Great for a kitchen and wet bar, a second kitchen, or a guest suite in South Clewiston.
3 or MoreInstalled
Our lowest per-unit price
Ideal for larger South Clewiston 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 in South Clewiston.
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 by South Clewiston source water.
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 useful in our humid subtropical climate.
One gallon of wastewater for every 1.5 gallons of purified water produced.
One full set of cartridges is roughly the equivalent of 8,000 bottles of water—less hauling cases around South Clewiston.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings, and every part needed for installation.

The built-in UV lamp is included—no add-ons or upgrades.

Installed under your sink and commissioned by pros—built for Hendry County homes.

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

No surprises. One low price includes everything.

Lower per-unit pricing when we install two or more in your South Clewiston 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 what you’re starting with in South Clewiston.
Perfect For
Point-of-use purification—so the water you drink and cook with in South Clewiston is the water that gets filtered.
Cleaner Water. Better Living. South Clewiston.
Installed by a Florida plumbing company that knows South Clewiston water—and stands behind the work.
Built with premium materials for reliable, long-term performance in South Florida homes.
The built-in UV lamp is included in the price on every unit we install in Hendry County.
We stand behind our products and the quality of our work in South Clewiston.
Join homeowners across Hendry County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in South Clewiston.
Tankless purification as you draw—no storage tank, no waiting, even in South Florida heat.
The built-in UV lamp helps eliminate bacteria, viruses, and microorganisms that filters can’t 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—great for South Clewiston, where hard, mineral-heavy groundwater can drive scale in plumbing and appliances. 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 South Clewiston
$995
Installed
Regularly