See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand—great for Saint Johns River Estates families dealing with hard, scale-forming water.
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, and a UV chamber sits inline between them. There’s no bulky storage tank, so water is purified on demand—great for Saint Johns River Estates homes.
The first cartridge traps rust, dirt, and sand—helpful with aquifer-sourced water common around St. Johns County.
Carbon block media that reduces chlorine, odors, colors and chemicals before the membrane—ideal for Floridan aquifer 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—nice for hard Floridan aquifer water.
Filtration Stages
Each stage handles what the one before it left behind—especially helpful with the hard-water minerals common from the Floridan aquifer in the St. Johns County area. UV is the fourth step and the one stage that is not filtration at all; it handles what filters can’t catch.
Removes rust, dirt, sand and large particles—common culprits with Floridan aquifer water.
Reduces chlorine, odors, colors and chemicals.
Removes up to 99% of dissolved solids, heavy metals and more—helpful for hard, scale-forming 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 for disinfection. It’s included in the price on every system we install in St. Johns County.
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 Saint Johns River Estates and the St. Johns County area.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install—and a great fit for most Saint Johns River Estates kitchen sinks.
2 UnitsInstalled
A lower price per unit on a two-system install for Saint Johns River Estates homes.
Great for a kitchen and wet bar, a second kitchen, or a guest suite in Saint Johns River Estates.
3 or MoreInstalled
Our lowest per-unit price in St. Johns County
Ideal for larger St. Johns County 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 the property with you in Saint Johns River Estates.
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 Saint Johns River Estates.
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 in humid Florida 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—less plastic headed toward the St. Johns River.
One Unit, Installed in Saint Johns River Estates
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Saint Johns River Estates installs.

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

Neatly fitted under your sink and professionally commissioned in Saint Johns River Estates.

We test your water before and after—so you can see the difference in your Saint Johns River Estates home.

No surprises—one low price includes everything for Saint Johns River Estates homes.

Lower per-unit pricing when we install two or more in your Saint Johns River Estates home.
Independent Testing
You don’t have to take performance on faith. This system has been tested by an independent laboratory against the recognised standard for reverse osmosis drinking water systems—so Saint Johns River Estates homeowners 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—ideal for Floridan aquifer water common in St. Johns County.
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 Saint Johns River Estates 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 drink and cook with in Saint Johns River Estates is the water that gets purified.
Cleaner Water. Better Living. In St. Johns County.
Installed by a Florida plumbing company that’s familiar with St. Johns County water—and stands behind the work.
Built with premium materials for reliable, long-term performance in Saint Johns River Estates.
The built-in UV lamp is included in the price on every unit we install in St. Johns County.
We stand behind our products and the quality of service we provide in St. Johns County.
Join homeowners in Saint Johns River Estates and across St. Johns County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Saint Johns River Estates.
Tankless purification as you draw—no storage tank, no waiting, and a great fit for busy St. Johns County kitchens.
The built-in UV lamp helps eliminate bacteria, viruses and microorganisms a filter can’t catch—extra peace of mind in humid Florida.
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 St. Johns County homes on Floridan aquifer water that’s often hard and scale-forming. 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 Saint Johns River Estates
$995
Installed
Regularly