See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand—built for Southmere families and our hard-water conditions.
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, with a UV chamber inline. There’s no bulky storage tank—so in Southmere’s warm, humid climate, you get purified water on demand instead of water sitting and waiting.
The first cartridge catches rust, dirt, sand, and larger particles—helpful with Southmere’s hard-water scale and sediment.
Carbon block media that reduces chlorine, odors, colors, and chemicals before the membrane—great for South Florida source water.
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—ideal for Southmere’s hard water.
Filtration Stages
Each stage handles something the one before it left behind—ideal for Southmere water, where hard-water scale is a common concern. UV is the fourth step in the sequence and the one stage that is not filtration at all; it is there to address what a filter cannot catch.
Removes rust, dirt, sand, and large particles—before they can add to Southmere scale buildup.
Reduces chlorine, odors, colors, and chemicals from your Southmere tap.
Removes up to 99% of dissolved solids, heavy metals, and more—helping with the hard-water issues common around Southmere.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals for a balanced, healthy pH—great for Southmere drinking water.
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 Southmere.
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 Southmere homes.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Southmere homes.
2 UnitsInstalled
A lower price per unit on a two-system install—great for larger Southmere homes.
Great for a kitchen and wet bar, a second kitchen, or a guest suite in your Southmere home.
3 or MoreInstalled
Our lowest per-unit price
For larger Southmere 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 Southmere 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 Southmere, FL.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM—results vary with Southmere 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—great for Southmere kitchens.
One gallon of wastewater for every 1.5 gallons of purified water produced.
One complete set of cartridges is roughly the equivalent of 8,000 bottles of water—less plastic, less hauling in Southmere.
One Unit, Installed in Southmere
$995
Installed
Regularly

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

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

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

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

No surprises. One low price includes everything for Southmere homes.

Lower per-unit pricing when we install two or more in your Southmere 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 Southmere visit, so you know what you’re starting from—including hard-water scaling concerns common in South Florida.
Perfect For
Point-of-use purification—so the water you drink and cook with in Southmere is the water that gets filtered.
Cleaner Water. Better Living. In Southmere.
Installed by a Florida plumbing company that knows Southmere water—and stands behind the work.
Built with premium materials for reliable, long-term performance in Southmere’s humid subtropical climate.
The built-in UV lamp is included in the price on every unit we install in Southmere.
We stand behind our products and the quality of our service in Southmere.
Join Southmere 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 Southmere.
The tankless design purifies as you draw—great for Southmere living with no tank and no waiting.
The built-in UV lamp helps eliminate bacteria, viruses, and microorganisms—extra peace of mind in humid Southmere.
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 Southmere homes dealing with hard-water scaling. 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 Southmere
$995
Installed
Regularly