See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Watson, FL home.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges handle the filtration stages, plus an inline UV chamber. With no bulky storage tank, Watson families get purified water on demand—no sitting, no waiting.
The first cartridge catches rust, dirt, sand, and larger particles—helpful whether your Watson home is on city water or a private well.
Carbon block media that takes out chlorine, odors, colors, and chemicals—ideal for Watson water, whether municipal or well.
The heart of the system—rejecting dissolved solids and heavy metals, whether your Watson home uses municipal water or a private well.
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—great for Watson, FL households.
Filtration Stages
Each stage handles what the one before it left behind. UV is the fourth step in the sequence—and the one stage that is not filtration at all—helpful for Watson homes where water quality can vary between municipal supply and private wells.
Removes rust, dirt, sand, and large particles—ideal for Watson well or municipal water.
Removes chlorine, odors, colors, and chemicals from Watson-area source water.
Removes up to 99% of dissolved solids, heavy metals, and more—performance varies by Watson source water.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals for a balanced, healthy pH—great for Watson, FL drinking water.
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. It’s included in the price on every system we install in Watson.
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 Watson homeowners.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Watson homes.
2 UnitsInstalled
A lower price per unit when you install two systems at your Watson property.
Great for a kitchen and wet bar, a second kitchen, or a guest suite in your Watson home.
3 or MoreInstalled
Our lowest per-unit price
For larger Watson 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 Watson 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 Watson 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 Watson).
The lamp operates automatically based on water flow pressure, and can be adjusted—simple protection for Watson homes.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination in Watson 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 Watson, FL homes on city water or a private well.
One Unit, Installed
$995
Installed
Regularly

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

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

Fitted under your sink and commissioned by pros—great for Watson well or city water.

We test your Watson 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—perfect for larger Watson households.
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—so Watson families can feel confident in what’s coming out of the tap.
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—especially in Watson where homes may be on municipal water or a private well. We test your water on the visit so you know your starting point.
Perfect For
Point-of-use purification means the water you drink and cook with in Watson is the water that gets purified.
Cleaner Water. Better Living. In Watson.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work for Watson families.
Built with premium materials for reliable, long-term performance in Watson’s humid subtropical climate.
The built-in UV lamp is included in the price on every unit we install in Watson.
We stand behind our products and the quality of our service in Watson.
Join Watson homeowners who trust Mr. Pure Water for cleaner, better-tasting water.
Product Assurances
Better-tasting, odor-free water for Watson drinking, cooking, and everyday use.
Tankless purification as you draw—no storage tank, no waiting, great for Watson homes.
The built-in UV lamp helps eliminate bacteria, viruses, and microorganisms—helpful for Watson well 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—ideal for Watson homes on either a municipal line or a private well. 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
$995
Installed
Regularly