See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Lake Mystic home.
The System—Built for Lake Mystic
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges provide four filtration stages, with a UV chamber inline between them. There’s no bulky storage tank, so your Lake Mystic water is purified on demand.
The first cartridge—catching rust, dirt, sand, and large particles before anything downstream sees them.
Carbon block media that reduces chlorine, odors, colors, and chemicals before the membrane.
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—right here in Lake Mystic.
Filtration Stages
Each stage handles what the one before it left behind. UV is the fourth step in the sequence—and it isn’t filtration at all. It’s there to handle what filters can’t catch, for Lake Mystic homes that want extra peace of mind.
Removes rust, dirt, sand, and large particles from Lake Mystic water.
Removes chlorine, odors, colors, and chemicals.
Removes up to 99% of dissolved solids, heavy metals, and more.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals for a balanced, healthy pH—perfect for Lake Mystic kitchens.
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—it’s included in the price on every Lake Mystic system we install.
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 in Lake Mystic.
1 UnitInstalled
Regularly $2,000 - you save $1,005
A standard install—and the right fit for a kitchen sink in most Lake Mystic homes.
2 UnitsInstalled
A lower price per unit on a two-system install
Great for a Lake Mystic kitchen and wet bar, a second kitchen, or a guest suite.
3 or MoreInstalled
Our lowest per-unit price in Lake Mystic
For larger Lake Mystic homes, multi-unit properties, and light commercial spaces.
All prices are installed in Lake Mystic and include UV sterilization—no hidden fees. Not sure how many you need? We’ll walk the 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 for Lake Mystic homes
The T1-400 series tankless under-sink reverse osmosis system for Lake Mystic homes.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM.
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.
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 for your Lake Mystic home.
One Unit, Installed in Lake Mystic
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings, and all parts.

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

Fitted under your sink and commissioned by professionals in Lake Mystic.

In Lake Mystic, we test your water before and after—so you can see the difference.

No surprises—one low price includes everything in Lake Mystic.

Lower per-unit pricing when we install two or more in Lake Mystic.
Independent Testing
You don’t have to take performance on faith. This system has been independently lab tested to the recognized standard for reverse osmosis drinking water systems.
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 Lake Mystic water during the visit so you know what you’re starting from.
Perfect For
It goes in at the point of use—so the water you actually drink and cook with in Lake Mystic is the water that gets purified.
Cleaner Water. Better Living. In Lake Mystic.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work for Lake Mystic customers.
Built with premium materials for reliable, long-term performance in Lake Mystic.
The built-in UV lamp is included in the price on every unit we install in Lake Mystic.
We stand behind our products and the quality of service we provide in Lake Mystic.
Join homeowners across Florida—including Lake Mystic—who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Lake Mystic.
The tankless design purifies as you draw—so in Lake Mystic, there’s no storage tank and no waiting.
The built-in lamp helps eliminate bacteria, viruses, and microorganisms a filter can’t catch—great peace of mind in Lake Mystic.
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—perfect for Lake Mystic homes. 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 Lake Mystic
$995
Installed
Regularly