See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for La Grange families—especially helpful with Florida’s hard, mineral-rich water.
The System Itself
Designed to fit under your sink and connect with quick-connect fittings. Four quick-change twist cartridges provide four filtration stages, with a UV chamber inline between them. With no bulky storage tank, you get purified water on demand—great for La Grange’s humid subtropical climate and everyday hydration.
The first cartridge traps rust, dirt, sand, and larger particles—helpful with Florida’s mineral-rich groundwater.
Carbon block media that reduces chlorine, odors, colors and chemicals before the membrane—helpful with mineral-rich groundwater common in Florida.
The heart of the system—rejects dissolved solids and heavy metals, then sends the concentrate to the drain (ideal for hard water).
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—nice for La Grange’s mineral-rich water.
Filtration Stages
Each stage handles what the one before it leaves behind—ideal for mineral-rich Florida groundwater that can cause hard-water scale. UV is the fourth step in the sequence and the one stage that is not filtration at all; it handles what a filter cannot catch.
Removes rust, dirt, sand, and large particles—great for mineral-rich groundwater in Florida.
Removes chlorine, odors, colors and chemicals from La Grange tap water.
Removes up to 99% of dissolved solids, heavy metals and more—helpful for La Grange’s hard-water conditions.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals for a balanced, healthy pH—great for La Grange, FL homes.
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 La Grange.
Pricing
The systems are identical—the difference is how many you have installed on the same visit in La Grange. Every unit includes UV sterilization and professional installation.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most La Grange homes.
2 UnitsInstalled
A lower price per unit on a two-system install for your La Grange property.
Great for a kitchen and wet bar, a second kitchen, or a guest suite in your La Grange home.
3 or MoreInstalled
Our lowest per-unit price in La Grange
Great for larger La Grange 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 property with you during your La Grange 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 La Grange homes.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM—results vary with La Grange 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 busy La Grange 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 La Grange, FL households.
One Unit, Installed in La Grange
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for La Grange install.

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

Fitted under your sink and commissioned by La Grange water pros.

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

No surprises—one low price includes everything in La Grange.

Lower per-unit pricing when we install two or more in your La Grange home.
Independent Testing
You do not have to take performance on faith. The system has been tested by an independent laboratory against the recognised standard for reverse osmosis drinking water systems—great for La Grange households on mineral-rich groundwater.
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 La Grange water during the visit, so you know exactly what you’re starting from.
Perfect For
Installs at the point of use—so the water you drink and cook with in La Grange is the water that gets purified.
Cleaner Water. Better Living. In La Grange.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work in La Grange.
Built with premium materials for reliable, long-term performance in La Grange’s humid subtropical climate.
The built-in UV lamp is included in the price on every unit we install in La Grange.
We stand behind our products and the quality of service we provide in La Grange.
Join La Grange homeowners who choose Mr. Pure Water for cleaner, better-tasting water.
Product Assurances
Better-tasting, odor-free water for La Grange drinking, cooking, and everyday use.
Tankless purification as you draw—great for busy La Grange kitchens with no waiting.
The built-in lamp helps eliminate bacteria, viruses and microorganisms—extra peace of mind in La Grange.
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 La Grange homes dealing with mineral-rich, hard 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 La Grange
$995
Installed
Regularly