See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Rock Harbor, FL home.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges provide the four filtration stages, and a UV chamber sits inline between them. There’s no bulky storage tank, so your water is purified on demand—ideal for Rock Harbor’s humid Florida climate and busy kitchens.
The first cartridge catches rust, dirt, sand, and larger particles before anything downstream sees them.
Carbon block media that reduces chlorine, odors, colors, and chemicals before the membrane—great for Rock Harbor, FL tap 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.
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 isn’t filtration at all. It’s there to address what a filter can’t catch.
Removes rust, dirt, sand, and large particles.
Reduces 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.
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—and it’s included in the price on every system we install in Rock Harbor, FL.
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 Rock Harbor.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install—and the right fit for a kitchen sink in most Rock Harbor homes.
2 UnitsInstalled
A lower price per unit when you install two systems at the same visit.
Great for a kitchen and wet bar, a second kitchen, or a guest suite in your Rock Harbor home.
3 or MoreInstalled
Our lowest per-unit price
For larger Rock Harbor 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 Rock Harbor 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 Rock Harbor.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM—results vary in Rock Harbor, FL by source water.
The lamp runs automatically based on water flow pressure, and can be adjusted.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination.
About one gallon of wastewater for every 1.5 gallons of purified water produced.
One complete set of cartridges is roughly the equivalent of 8,000 bottles of water—less plastic to haul around Rock Harbor, FL.
One Unit, Installed in Rock Harbor
$995
Installed
Regularly

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

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

Fitted under your sink and commissioned by pros serving Rock Harbor, Florida.

We test your water before and after—so Rock Harbor homeowners can see the difference.

No surprises—one low price includes everything for Rock Harbor homes.

Lower per-unit pricing when we install two or more in your Rock Harbor home.
Independent Testing
You don’t have to take performance on faith. The system has been tested by an independent laboratory against 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 water during the Rock Harbor visit so you know exactly what you’re starting from.
Perfect For
Point-of-use installation means the water you drink and cook with in Rock Harbor is the water that gets purified.
Cleaner Water. Better Living. In Rock Harbor.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work in Rock Harbor.
Built with premium materials for reliable, long-term performance in Rock Harbor’s Florida climate.
The built-in UV lamp is included in the price on every unit we install in Rock Harbor.
We stand behind our products and the quality of our service in Rock Harbor.
Join homeowners in Rock Harbor, Florida who choose Mr. Pure Water for cleaner drinking water at the tap.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Rock Harbor.
The tankless design purifies as you draw—so Rock Harbor homes get clean water with no tank and no waiting.
The built-in UV lamp helps eliminate bacteria, viruses, and microorganisms a filter can’t catch.
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 humid Florida conditions like Rock Harbor. 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