See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand—built for Sweetwater families and Miami-Dade’s hard municipal water.
The System Itself
Designed to fit under your sink with quick-connect fittings. Four quick-change twist cartridges handle the filtration stages, with an inline UV chamber. No bulky storage tank—so you get purified water on demand, not water sitting and waiting in Sweetwater’s heat and humidity.
The first cartridge traps rust, dirt, sand, and large particles—helpful with Miami-Dade’s hard municipal water.
Carbon block media that reduces chlorine, odors, color, and chemicals before the membrane—great for Miami-Dade tap water.
The heart of the system—rejects dissolved solids and heavy metals, sending the concentrate to the drain.
Final cartridge polishes the water and adds beneficial minerals back for balanced pH—ideal for Miami-Dade homes.
Filtration Stages
Each stage handles what the one before it leaves behind—helpful with hard municipal water common across the Miami-Dade area. UV is the fourth step in the sequence, and the one stage that is not filtration at all; it’s there to handle what filters can’t catch.
Removes rust, dirt, sand, and large particles from Sweetwater tap water.
Reduces chlorine, odors, color, and chemicals from Sweetwater tap water.
Removes up to 99% of dissolved solids, heavy metals, and more—helpful with Miami-Dade’s 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 Sweetwater.
Pricing
The systems are identical—the only difference is how many you install on the same visit. Every unit includes UV sterilization and professional installation for Sweetwater-area homes.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install—and the right fit for a kitchen sink in most Sweetwater homes.
2 UnitsInstalled
A lower price per unit when you install two systems in Sweetwater.
Great for a Sweetwater kitchen plus a wet bar, second kitchen, or guest suite.
3 or MoreInstalled
Our lowest per-unit price in Sweetwater
Ideal for larger Sweetwater 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? We’ll walk your Sweetwater 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 Sweetwater homes.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM in Sweetwater.
The UV lamp runs 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 replaces about 8,000 bottles—perfect for busy Sweetwater households.
One Unit, Installed in Sweetwater
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Sweetwater install.

The built-in UV lamp is part of the price—no upgrade needed.

Neatly fitted under your sink and commissioned by our Sweetwater-area pros.

We test your Sweetwater water before and after, so you can see the difference.

No surprises for Sweetwater. One low price includes everything.

Lower per-unit pricing when we install two or more in your Sweetwater home.
Independent Testing
You don’t have to take performance on faith. This system has been tested by an independent laboratory against the recognised standard for reverse osmosis drinking water systems—so Sweetwater families can feel confident in what’s coming from the tap.
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 Sweetwater water during the visit so you know exactly what you’re starting from.
Perfect For
Point-of-use purification—so the water you drink and cook with in Sweetwater is the water that gets purified.
Cleaner Water. Better Living in Sweetwater.
Installed by a Florida plumbing company that knows Sweetwater and stands behind the work.
Built with premium materials for reliable, long-term performance in Sweetwater.
The built-in UV lamp is included in the price on every unit we install in Sweetwater.
We stand behind our products and our Sweetwater service.
Join Sweetwater homeowners and Miami-Dade neighbors who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday life in Sweetwater.
Tankless purification as you draw—no storage tank and no waiting, even on hot Sweetwater days.
Built-in UV helps eliminate bacteria, viruses, and microorganisms a filter 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 Sweetwater kitchens. 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 Sweetwater
$995
Installed
Regularly