See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Holden Lakes family.
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, with a UV chamber inline. There’s no bulky storage tank—so in humid subtropical Holden Lakes, you get purified water on demand, not water sitting and waiting.
The first cartridge—catching rust, dirt, sand, and larger particles often found in Central Florida groundwater before anything downstream sees them.
Carbon block media that reduces chlorine, odors, colors, and chemicals before the membrane—great for Central Florida water.
The heart of the system—rejecting dissolved solids and heavy metals often found in mineral-rich aquifer water, and sending concentrate to the drain.
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—great for Holden Lakes drinking water.
Filtration Stages
Each stage handles what the one before it leaves behind. UV is the fourth step in the sequence—and it’s not filtration at all. It helps address what a filter cannot catch, which matters with Central Florida groundwater sources like the Floridan aquifer.
Removes rust, dirt, sand and larger particles common in groundwater-fed systems.
Reduces chlorine, odors, colors, and chemicals from your Holden Lakes tap.
Removes up to 99% of dissolved solids, heavy metals, and more—helpful for mineral-rich Central Florida water.
Kills 99.99% of bacteria, viruses and microorganisms.
Adds beneficial minerals for a balanced, healthy pH for your Holden Lakes home.
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—included in the price on every system we install in Holden Lakes.
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 Holden Lakes homeowners.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Holden Lakes homes.
2 UnitsInstalled
A lower price per unit on a two-system install for Holden Lakes homes
Great for a kitchen and wet bar, a second kitchen, or a guest suite in your Holden Lakes home.
3 or MoreInstalled
Our lowest per-unit price in Holden Lakes
For larger Holden Lakes 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 Holden Lakes 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—ideal for mineral-heavy aquifer water
The T1-400 series tankless under-sink reverse osmosis system.
Typically 95% and up to 99.99% reduction—bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM (results vary by Holden Lakes source).
The UV lamp operates automatically based on water flow pressure and can be adjusted for your Holden Lakes home.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination—ideal for Holden Lakes 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—less plastic for Holden Lakes, FL.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Holden Lakes installation.

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

Fitted under your sink and commissioned by pros—ideal for Holden Lakes homes.

We test your water before and after—so Holden Lakes homeowners can see the difference.

No surprises. One low price includes everything.

Lower per-unit pricing when we install two or more in your Holden Lakes 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—so you can feel confident in your Holden Lakes kitchen.
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 your source water and household usage. In Holden Lakes, we test your 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 your Holden Lakes kitchen is the water that gets purified.
Cleaner Water. Better Living. In Holden Lakes.
Installed by a Florida plumbing company that knows Central Florida water—and stands behind the work.
Built with premium materials for reliable, long-term performance in Holden Lakes homes.
The built-in UV lamp is included in the price on every unit we install in Holden Lakes.
We stand behind our products and the quality of our work in Holden Lakes.
Join Holden Lakes 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 Holden Lakes.
Tankless purification as you draw—no storage tank and no waiting in Holden Lakes kitchens.
The built-in UV lamp helps eliminate bacteria, viruses and microorganisms filters 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—great for Holden Lakes homes. 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 Holden Lakes
$995
Installed
Regularly