See the purity, trust the technology. A tankless under-sink system delivering ultra-pure, clean, refreshing water on demand—built for Mildred families and Florida’s hard groundwater.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges handle the filtration stages, with a UV chamber inline. No bulky storage tank—so you get purified water on demand for your Mildred home.
The first cartridge catches rust, dirt, sand, and large particles—helpful with Florida groundwater before it reaches later stages.
Carbon block media that reduces chlorine, odors, colors and chemicals before the membrane—helpful with Florida groundwater.
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 Mildred’s hard water.
Filtration Stages
Each stage handles what the one before it left behind—helpful for Mildred’s mineral-rich groundwater that can leave scale. UV is the fourth step 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—common in Floridan aquifer groundwater.
Reduces chlorine, odors, colors and chemicals.
Removes up to 99% of dissolved solids, heavy metals and more—helping fight scale from Florida’s hard aquifer water.
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 Mildred.
Pricing
The systems are identical—the difference is how many you have installed on the same visit in Mildred. 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 Mildred homes.
2 UnitsInstalled
A lower price per unit when you install two systems at the same Mildred property.
Great for a kitchen and wet bar, a second kitchen, or a guest suite in Mildred.
3 or MoreInstalled
Our lowest per-unit price
Ideal for larger Mildred 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 the Mildred property with you as part of 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 Mildred homes.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM in many cases.
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—ideal for humid Florida 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—great for Mildred households.
One Unit, Installed
$995
Installed
Regularly

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

The built-in UV lamp is included in the price—not an upgrade.

Fitted under your sink and commissioned by pros—built for Mildred’s hard water.

We test your Mildred 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 in your Mildred home.
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—great peace of mind for Mildred households.
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 Mildred water during the visit so you know what you’re starting from.
Perfect For
It installs at the point of use, so the water you drink and cook with in Mildred is the water that gets purified.
Cleaner Water. Better Living. In Mildred.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work for Mildred homes.
Built with premium materials for reliable, long-term performance in Mildred’s humid subtropical climate.
The built-in UV lamp is included in the price on every unit we install in Mildred.
We stand behind our products and the quality of service we provide in Mildred.
Join Mildred homeowners who choose Mr. Pure Water for cleaner, better-tasting water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Mildred.
Tankless purification as you draw—no storage tank, no waiting, even in humid Mildred weather.
Built-in UV helps eliminate bacteria, viruses, and microorganisms a filter can’t catch—added confidence for Mildred taps.
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 Mildred homes dealing with hard, mineral-rich Floridan aquifer water. 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 Mildred
$995
Installed
Regularly