See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Eustis family—great for dealing with Lake County’s hard water.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges carry the four filtration stages, and a UV chamber sits inline between them. There is no bulky storage tank, so the water is purified on demand rather than sitting and waiting—ideal for busy Eustis kitchens.
The first cartridge catches rust, dirt, sand, and larger particles—helpful with Lake County’s hard-water scale issues.
Carbon block media that takes out chlorine, odors, colors, and chemicals ahead of the membrane—great for Lake County water.
The heart of the system, rejecting dissolved solids and heavy metals and sending the concentrate to the drain—helpful with hard Lake County water.
The final cartridge, polishing the water and adding beneficial minerals back for a balanced pH—great for Eustis families.
Filtration Stages
Each stage handles what the one before it left behind—ideal for Lake County’s hard water and the scale it can leave in plumbing. UV is the fourth step in the sequence and the one stage that is not filtration at all; it’s there to deal with what a filter cannot catch.
Removes rust, dirt, sand, and large particles—ideal for Lake County water.
Removes chlorine, odors, colors, and chemicals from your Eustis tap water.
Removes up to 99% of dissolved solids, heavy metals, and more—ideal for hard Lake County water.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals for a balanced, healthy pH—perfect for Eustis 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, which is not filtration but disinfection—and it’s included in the price on every system we install in Eustis.
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 Eustis and across Lake County.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Eustis homes.
2 UnitsInstalled
A lower price per unit on a two-system install for Eustis homes.
Great for a kitchen and wet bar, a second kitchen, or a guest suite—perfect for Eustis homes.
3 or MoreInstalled
Our lowest per-unit price in Eustis
For larger Eustis 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 Eustis 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 Eustis homes.
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 County.
The lamp operates automatically based on water flow pressure, and can be adjusted—ideal for everyday use in Eustis homes.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination in humid 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—less hauling cases around Eustis.
One Unit, Installed in Eustis
$995
Installed
Regularly

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

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

Fitted under your sink and commissioned by pros serving Eustis and Lake County.

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

No surprises—one low price includes everything for your Eustis install.

Lower per-unit pricing when we install two or more in your Eustis home.
Independent Testing
You don’t 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—great peace of mind for Eustis families.
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 on the visit so you know what you’re starting from in Eustis and across Lake County.
Perfect For
Installs at the point of use, so the water you drink and cook with in your Eustis kitchen is the water that gets purified.
Cleaner Water. Better Living. In Eustis.
Installed by a Florida plumbing company trusted in Eustis and Lake County—and we stand behind the work.
Built with premium materials for reliable, long-term performance in Lake County homes.
The built-in UV lamp is included in the price on every unit we install in Eustis.
We stand behind our products and the quality of service we bring to Eustis.
Join homeowners across Eustis and Lake County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for Eustis drinking, cooking, and everyday use.
Tankless purification as you draw—ideal for busy Eustis kitchens with no waiting.
The built-in UV lamp helps eliminate bacteria, viruses and microorganisms in Eustis homes.
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 Eustis homes dealing with Lake County’s hard water and scale. 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 Eustis
$995
Installed
Regularly