See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Brownsville family.
The System Itself
Designed to fit neatly under your sink in Brownsville. Quick-connect fittings make installation clean and simple. Four quick-change twist cartridges handle the filtration stages, with a UV chamber inline. With no bulky storage tank, water is purified on demand instead of sitting and waiting.
The first cartridge catches rust, dirt, sand, and larger particles—helpful when water conditions vary by source in Brownsville.
Carbon block media that reduces chlorine, odors, color, and chemicals before the membrane—ideal for Brownsville water.
The heart of the system—rejecting dissolved solids and heavy metals, and sending the concentrate to the drain.
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—great for Brownsville households.
Filtration Stages
Each stage handles what the one before it left behind. UV is the fourth step, and it’s not filtration at all—it’s there to address what filters can’t catch, for extra peace of mind in Brownsville homes.
Removes rust, dirt, sand and large particles—helpful with Brownsville’s varied water sources.
Reduces chlorine, odors, color, and chemicals.
Removes up to 99% of dissolved solids, heavy metals, and more (performance varies with Brownsville source water).
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 (disinfection, not filtration). It’s included in the price on every system we install in Brownsville.
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 Brownsville homeowners.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Brownsville homes.
2 UnitsInstalled
A lower price per unit on a two-system install for Brownsville homes.
Great for a kitchen and wet bar, a second kitchen, or a guest suite in your Brownsville home.
3 or MoreInstalled
Our lowest per-unit price
Ideal for larger Brownsville homes, multi-unit properties, and light commercial spaces.
All prices are installed and include UV sterilization, with no hidden fees. Not sure what you need? We’ll walk the property with you in Brownsville.
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 Brownsville, FL.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM (results vary by Brownsville 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—especially helpful in humid subtropical Brownsville.
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 Brownsville homes.
One Unit, Installed
$995
Installed
Regularly

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

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

Fitted under your sink and professionally commissioned in Brownsville.

We test your Brownsville 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 Brownsville home.
Independent Testing
You don’t have to take performance on faith. This system has been independently lab tested against the recognized standard for reverse osmosis drinking water systems—so Brownsville families can feel confident in what’s in the glass.
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 Brownsville, conditions can vary by utility or well—so we test your water on the visit.
Perfect For
It installs at the point of use—so the water you drink and cook with in Brownsville is the water that gets purified.
Cleaner Water. Better Living. Right here in Brownsville.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work in Brownsville.
Built with premium materials for reliable, long-term performance in Brownsville’s humid subtropical climate.
The built-in UV lamp is included in the price on every unit we install in Brownsville.
We stand behind our products and the quality of our service in Brownsville.
Join Brownsville homeowners who choose Mr. Pure Water for better-tasting water at the tap.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Brownsville.
Tankless purification as you draw—no storage tank, no waiting, great for humid Brownsville days.
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—ideal for Brownsville homes. Because local water conditions can vary by utility and well sources, 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 Brownsville
$995
Installed
Regularly