See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your St Cloud home and family.
The System—Right for St Cloud Homes
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 your St Cloud home gets purified water on demand rather than sitting and waiting.
The first cartridge—catching rust, dirt, sand, and large particles before anything downstream sees them.
Carbon block media that takes out chlorine, odors, colors, and chemicals ahead of the membrane—great for St Cloud water.
The heart of the system—rejecting dissolved solids and heavy metals, then sending the concentrate to the drain for cleaner St Cloud water.
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—great for St Cloud kitchens.
Filtration Stages
Each stage handles something the one before it left behind. UV is the fourth step in the sequence and the one stage that is not filtration at all - it is there to deal with what a filter cannot catch.
Removes rust, dirt, sand, and large particles from St Cloud water.
Removes chlorine, odors, colors, and chemicals from your St Cloud tap.
Removes up to 99% of dissolved solids, heavy metals and more.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals for a balanced, healthy pH—ideal for St Cloud homes.
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 St Cloud.
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 in St Cloud.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install—and the right fit for a kitchen sink in most St Cloud homes.
2 UnitsInstalled
A lower price per unit on a two-system install in St Cloud
Ideal for a St Cloud kitchen and wet bar, a second kitchen, or a guest suite.
3 or MoreInstalled
Our lowest per-unit price in St Cloud
For larger St Cloud homes, multi-unit properties, and light commercial spaces.
All prices are installed in St Cloud and include UV sterilization—no hidden fees. Not sure how many you need? We’ll walk the 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 for St Cloud tap water
The T1-400 series tankless under-sink reverse osmosis system for St Cloud homes.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM in St Cloud homes.
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 your St Cloud kitchen.
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 for your St Cloud household.
One Unit, Installed in St Cloud
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—installed in St Cloud.

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

Fitted under your sink and commissioned by pros serving St Cloud.

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

No surprises for St Cloud homeowners. One low price includes everything.

Lower per-unit pricing when we install two or more in St Cloud.
Independent Testing
You don’t have to take performance on faith. This system has been tested by an independent laboratory to the recognized 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—helping St Cloud families feel confident in every glass.
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 your St Cloud visit so you know what you’re starting from.
Perfect For
It goes in at the point of use, so the water you actually drink and cook with in St Cloud is the water that gets purified.
Cleaner Water. Better Living. In St Cloud.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work for St Cloud homeowners.
Built with premium materials for reliable, long-term performance in St Cloud.
The built-in UV lamp is included in the price on every unit we install in St Cloud.
We stand behind our products and the quality of service we provide in St Cloud.
Join homeowners across St Cloud and South Florida who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in your St Cloud home.
The tankless design purifies as you draw, so there’s no storage tank and no waiting—just clean water on demand in St Cloud.
The built-in lamp helps eliminate bacteria, viruses, and microorganisms a filter can’t catch—extra peace of mind in St Cloud.
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 St Cloud 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, Professionally Installed in St Cloud
$995
Installed
Regularly