See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Islandia family—without a bulky tank taking up space.
The System Itself
Designed for Islandia homes, this compact system fits under your sink with quick-connect fittings. Four quick-change twist cartridges handle the filtration stages, with a UV chamber inline. With no bulky storage tank, water is purified on demand—so it stays fresh in our hot, humid climate.
The first cartridge traps rust, dirt, sand, and larger particles—helpful with Miami-area mineral scale concerns.
Carbon block media that reduces chlorine, odors, color and chemicals before the membrane—great for Miami-area water.
The heart of the system—rejects dissolved solids and heavy metals, sending the concentrate to the drain.
The final cartridge polishes the water and adds beneficial minerals back for balanced pH—great for hard water in the Miami area.
Filtration Stages
Each stage handles what the one before it left behind—helpful in the Miami area, where hard water can leave mineral scale. UV is the fourth step and the one stage that is not filtration at all; it targets what filters cannot catch.
Removes rust, dirt, sand, and large particles—great for Miami-area water.
Reduces chlorine, odors, color and chemicals common in Miami-area tap water.
Removes up to 99% of dissolved solids, heavy metals, and more—helpful with hard water in the Miami area.
Kills 99.99% of bacteria, viruses and microorganisms.
Adds beneficial minerals back for a balanced, healthy pH.
Four filtration stages plus UV sterilization. Steps 1–3 and 5 are the four filtration stages; step 4 is the built-in UV lamp for disinfection (not filtration). It’s included in the price on every system we install in Islandia.
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 Islandia and across Miami-Dade.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Islandia homes.
2 UnitsInstalled
A lower price per unit when you install two systems
Great for a kitchen and wet bar, a second kitchen, or a guest suite.
3 or MoreInstalled
Our lowest per-unit price
Great for larger Islandia homes, multi-unit properties, and light commercial spaces in Miami-Dade.
All prices are installed and include UV sterilization, with no hidden fees. Not sure how many you need for your Islandia home? 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
The T1-400 series tankless under-sink reverse osmosis system for Islandia.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM—results vary by Miami-Dade source water.
The lamp runs automatically based on water flow pressure, and can be adjusted as needed.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination—ideal for Islandia 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 across Miami-Dade County.
One Unit, Installed
$995
Installed
Regularly

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

The built-in UV lamp is included—no add-ons or upgrades.

Fitted under your sink and commissioned by pros serving Islandia and the Miami metro area.

We test your Islandia water before and after—so you can see the difference.

No surprises—one low price includes everything for Islandia homes.

Lower per-unit pricing when we install two or more in your Islandia home.
Independent Testing
You do not have to take performance on faith. This system has been tested by an independent laboratory against the recognized standard for reverse osmosis drinking water systems—great peace of mind for Islandia households.
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 Islandia visit so you know exactly what you’re starting from.
Perfect For
Point-of-use purification—so the water you drink and cook with in Islandia is the water that gets purified.
Cleaner Water. Better Living in Islandia.
Installed by a Florida plumbing company that knows Miami-Dade homes—and stands behind the work.
Built with premium materials for reliable, long-term performance in Islandia.
The built-in UV lamp is included in the price on every unit we install in Islandia.
We stand behind our products and the quality of our Islandia service.
Join homeowners across the Miami metro area who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Islandia.
Tankless purification as you draw—no storage tank, no waiting, just fresh water for Islandia homes.
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 Islandia homes dealing with Miami-area hard water and mineral scale. 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 Islandia
$995
Installed
Regularly