See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for Oak Knoll Estates families.
The System, Installed in Oak Knoll Estates
Designed to fit neatly under your sink in Oak Knoll Estates, the system connects with quick-connect fittings. Four quick-change twist cartridges provide the four filtration stages, with a UV chamber inline between them. There’s no bulky storage tank—water is purified on demand, not sitting and waiting.
The first cartridge—catching rust, dirt, sand, and large particles before anything downstream sees them.
Carbon block media that removes chlorine, odors, colors, and chemicals ahead of the membrane.
The heart of the system—rejecting dissolved solids and heavy metals, then sending the concentrate to the drain for Oak Knoll Estates homes.
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—perfect for Oak Knoll Estates households.
Filtration Stages
Each stage handles something 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 is there to deal with what a filter cannot catch.
Removes rust, dirt, sand, and large particles from Oak Knoll Estates tap 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—right at your Oak Knoll Estates tap.
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 system we install in Oak Knoll Estates.
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 Oak Knoll Estates.
1 UnitInstalled
Regularly $2,000 - you save $1,005
Our standard install—an ideal fit for most Oak Knoll Estates kitchen sinks.
2 UnitsInstalled
A lower price per unit on a two-system install
Great for a kitchen and wet bar, a second kitchen, or a guest suite in your Oak Knoll Estates home.
3 or MoreInstalled
Our lowest per-unit price in Oak Knoll Estates
For larger Oak Knoll Estates homes, multi-unit properties, and light commercial spaces.
All prices are installed in Oak Knoll Estates 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 Oak Knoll Estates homes
The T1-400 series tankless under-sink reverse osmosis system for Oak Knoll Estates homes.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water down 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.
One Unit, Installed
$995
Installed
Regularly

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

The built-in UV lamp is included—not an upgrade.

Fitted under your sink and commissioned by professionals in Oak Knoll Estates.

We test your Oak Knoll Estates water before and after, so you can see the difference.

No surprises for Oak Knoll Estates homeowners. One low price includes everything.

Lower per-unit pricing when we install two or more in Oak Knoll Estates.
Independent Testing
You don’t have to take performance on faith in Oak Knoll Estates. This system is 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—ideal for Oak Knoll Estates, Florida homes.
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 water during the Oak Knoll Estates visit, so you know exactly what you’re starting from.
Perfect For
Point-of-use installation means the water you actually drink and cook with in Oak Knoll Estates is the water that gets purified.
Cleaner Water. Better Living in Oak Knoll Estates.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work for Oak Knoll Estates homeowners.
Built with premium materials for reliable, long-term performance in Oak Knoll Estates.
The built-in UV lamp is included in the price on every Oak Knoll Estates install.
We stand behind our products and the quality of service we provide in Oak Knoll Estates.
Join homeowners across South Florida—including Oak Knoll Estates—who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Oak Knoll Estates.
Tankless purification as you draw—no storage tank and no waiting in your Oak Knoll Estates home.
The built-in lamp helps eliminate bacteria, viruses, and microorganisms a filter can’t catch—extra peace of mind in Oak Knoll Estates.
The Mr. Pure Water Under-Sink Reverse Osmosis System with UV Sterilization is a tankless point-of-use system that fits neatly under your Oak Knoll Estates sink with quick-connect fittings. 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, Professionally Installed
$995
Installed
Regularly