See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for Lake Hart families.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges provide the four filtration stages, and a UV chamber sits inline between them. With no bulky storage tank, you get purified water on demand—ideal for busy Lake Hart households.
The first cartridge catches rust, dirt, sand, and larger particles—helpful on Lake Hart municipal water or well water.
Carbon block media that reduces chlorine, odors, colors, and chemicals—great for Lake Hart municipal water taste and smell.
The heart of the system, rejecting dissolved solids and heavy metals—helpful with Lake Hart’s varying well or municipal water mineral content.
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—great for everyday drinking in Lake Hart.
Filtration Stages
Each stage handles what the one before it left behind—helpful in Lake Hart where municipal water or private wells can vary in mineral content. UV is the fourth step in the sequence, and the one stage that isn’t filtration at all; it’s there to address what a filter can’t catch.
Removes rust, dirt, sand, and larger particles—helpful with Lake Hart’s varying mineral content.
Reduces chlorine, odors, colors, and chemicals.
Removes up to 99% of dissolved solids, heavy metals, and more—ideal for Lake Hart’s moderate water hardness.
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 (not filtration). It’s included in the price on every system we install in Lake Hart.
Pricing
The systems are identical—the only difference is how many you have installed on the same visit. Every unit includes UV sterilization and professional installation in the Lake Hart area.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install—and the right fit for a kitchen sink in most Lake Hart homes.
2 UnitsInstalled
A lower price per unit when you do a two-system install in Lake Hart.
Ideal for a kitchen and wet bar, a second kitchen, or a guest suite—great for Lake Hart homes.
3 or MoreInstalled
Our lowest per-unit price
For larger Lake Hart homes, multi-unit properties, and light commercial spaces in Orange County.
All prices are installed and include UV sterilization, with no hidden fees. Not sure how many you need? We’ll walk your Lake Hart 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 Lake Hart.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM—results vary in Lake Hart.
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—especially important in humid Central Florida homes.
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—less plastic headed to Orange County landfills.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Lake Hart installs.

The built-in UV lamp is part of the price, not an upgrade.

Fitted under your sink and commissioned by pros serving Lake Hart and the Orlando metro.

We test your Lake Hart 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 Lake Hart 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—great peace of mind for Lake Hart’s mix of municipal water and wells.
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—ideal for Lake Hart municipal water or private wells where mineral content can vary.
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. In Lake Hart, we test your water during the visit—especially helpful with varying well vs. municipal mineral content.
Perfect For
It installs at the point of use, so the water you drink and cook with in Lake Hart is the water that gets purified.
Cleaner Water. Better Living. In Lake Hart.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work for Lake Hart homes.
Built with premium materials for reliable, long-term performance in Lake Hart.
The built-in UV lamp is included in the price on every unit we install in Lake Hart.
We stand behind our products and the quality of service we deliver across Lake Hart and Orange County.
Join Lake Hart homeowners in Orange County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Lake Hart.
Tankless purification as you draw—no storage tank, no waiting—perfect for busy Lake Hart kitchens.
The built-in UV lamp helps eliminate bacteria, viruses, and microorganisms—extra peace of mind for Lake Hart well or city water.
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 Lake Hart homes on municipal water or private wells. 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 Lake Hart
$995
Installed
Regularly