See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand—ideal for Chain O’Lakes homes dealing with hard, mineral-rich water.
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, and a UV chamber sits inline between them. There’s no bulky storage tank, so you get purified water on demand—great for busy Chain O’Lakes kitchens.
First cartridge captures rust, dirt, sand, and sediment—helpful with mineral-rich Central Florida water.
Carbon block media that reduces chlorine, odors, colors and chemicals before the membrane—ideal for mineral-rich Central Florida water.
The heart of the system—rejecting dissolved solids and heavy metals, then sending the concentrate to the drain (helpful with hard water here).
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—perfect for Lake County drinking water.
Filtration Stages
Each stage handles what the one before it leaves behind—ideal for mineral-rich Central Florida water. UV is step four, and it’s the one stage that isn’t filtration at all; it’s there to handle what filters can’t catch.
Removes rust, dirt, sand, and larger particles—great for hard, mineral-rich water.
Reduces chlorine, odors, colors and chemicals from Chain O’Lakes water.
Removes up to 99% of dissolved solids, heavy metals and more—helpful for hard, mineral-rich Central Florida water.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals for a balanced, healthy pH—great for Lake County households.
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 Chain O’Lakes.
Pricing
The systems are identical—the only difference is how many we install on the same visit. Every unit includes UV sterilization and professional installation for homes around Chain O’Lakes and Lake County.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install—and a great fit for most Chain O’Lakes kitchen sinks.
2 UnitsInstalled
A lower per-unit price when you install two systems.
Great for a kitchen + wet bar, a second kitchen, or a guest suite.
3 or MoreInstalled
Our lowest per-unit price
Ideal for larger Lake County 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 Chain O’Lakes property with you.
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 with Chain O’Lakes source water.
The lamp operates automatically based on water flow pressure, and can be adjusted for your home’s needs.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination in humid Central 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 Lake County families.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Chain O’Lakes installs.

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

Fitted under your sink and commissioned by local pros serving Chain O’Lakes.

We test your water before and after—great for hard, mineral-rich Central Florida water.

No surprises for your Chain O’Lakes home. One low price includes everything.

Lower per-unit pricing when we install two or more in your Chain O’Lakes home.
Independent Testing
You don’t have to take performance on faith. This system has been tested by an independent laboratory against the recognized standard for reverse osmosis drinking water systems—so Chain O’Lakes homeowners 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 source water and household usage. We test your water during the visit so you know exactly what you’re starting from in Chain O’Lakes.
Perfect For
Point-of-use install means the water you drink and cook with in Chain O’Lakes is the water that gets purified.
Cleaner Water. Better Living.
Installed by a Florida plumbing company trusted in Lake County—work done right, and backed up.
Built with premium materials for reliable, long-term performance in Central Florida homes.
Built-in UV is included in the price on every unit we install in Lake County.
We stand behind our products and the quality of our work in Lake County.
Join homeowners across Lake County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking and everyday use in Chain O’Lakes.
Tankless purification as you draw—no storage tank, no waiting, ideal for busy Lake County homes.
The built-in UV lamp 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—perfect for Chain O’Lakes homes dealing with hard, mineral-rich Central Florida 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 Chain O’Lakes
$995
Installed
Regularly