See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Williams Point family.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges handle the four filtration stages, with a UV chamber inline. There’s no bulky storage tank, so water is purified on demand—great for Williams Point’s humid subtropical climate and busy kitchens.
The first cartridge catches rust, dirt, sand, and larger particles—especially helpful for some Williams Point well setups.
Carbon block media that reduces chlorine, odors, colors, and chemicals before the membrane—ideal for Williams Point water sources.
The heart of the system—rejecting dissolved solids and heavy metals and sending the concentrate to the drain, whether you’re on city water or a private well in Williams Point.
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—perfect for Williams Point homes.
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—it’s there to handle what a filter can’t catch, especially helpful for Williams Point homes on private wells or municipal water.
Removes rust, dirt, sand, and large particles—ideal for Florida well or municipal water.
Removes chlorine, odors, colors and chemicals from your Williams Point tap water.
Removes up to 99% of dissolved solids, heavy metals and more—performance varies by Williams Point source water.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals for a balanced, healthy pH for Williams Point 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 (disinfection, not filtration). It’s included in the price on every system we install in Williams Point.
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 Williams Point homes.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Williams Point homes.
2 UnitsInstalled
A lower price per unit on a two-system install for Williams Point homes
Ideal for a kitchen and wet bar—or a guest suite setup in your Williams Point home.
3 or MoreInstalled
Our lowest per-unit price in Williams Point
For larger Williams Point 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 Williams Point 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 Williams Point.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM (results vary in Williams Point).
The lamp operates automatically based on water-flow pressure, and can be adjusted for your Williams Point home.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination—ideal for Williams Point 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 Williams Point households.
One Unit, Installed in Williams Point
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Williams Point installation.

The built-in UV lamp is part of the price, not an upgrade.

Fitted under your sink and commissioned by pros—ideal for Williams Point homes.

We test your water before and after—important in Williams Point where supply can be municipal or well.

No surprises—one low price includes everything for Williams Point homes.

Lower per-unit pricing when we install two or more in your Williams Point home.
Independent Testing
You don’t 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—ideal whether your Williams Point home is on municipal water or a private well.
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. Because Williams Point homes may be on municipal water or private wells, 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 actually drink and cook with in Williams Point is the water that gets purified.
Cleaner Water. Better Living. In Williams Point.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work in Williams Point.
Built with premium materials for reliable, long-term performance in Williams Point’s humid subtropical climate.
The built-in UV lamp is included in the price on every unit we install in Williams Point.
We stand behind our products and the quality of service we provide in Williams Point.
Join Williams Point 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 Williams Point.
Tankless purification as you draw—no storage tank and no waiting, even in humid subtropical Williams Point.
The built-in UV lamp helps eliminate bacteria, viruses, and microorganisms—extra peace of mind for Williams Point 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—great for Williams Point homes on municipal water or private wells. 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