See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for Sebastian families.
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, with a UV chamber inline. No bulky storage tank—so in Sebastian’s humid subtropical climate, water is purified on demand instead of sitting.
The first cartridge catches rust, dirt, sand, and large particles—before anything downstream sees them.
Carbon block media that reduces chlorine, odors, colors and chemicals before the membrane—great for hard water areas like Sebastian.
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—ideal for Sebastian’s hard water.
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 help address what filters can’t catch, for added peace of mind in Sebastian’s humid subtropical climate.
Removes rust, dirt, sand, and large particles—helpful with Sebastian’s hard-water concerns.
Reduces chlorine, odors, colors and chemicals for cleaner-tasting Sebastian water.
Removes up to 99% of dissolved solids, heavy metals and more—helpful for Sebastian’s hard water.
Kills 99.99% of bacteria, viruses, and microorganisms.
Adds beneficial minerals back for a balanced, healthy pH—great for Sebastian’s hard water.
Four filtration stages plus UV sterilization. Steps 1 to 3 and 5 are the filtration stages; step 4 is the built-in UV lamp for disinfection—included in the price on every system we install in Sebastian.
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 for Sebastian and Indian River County homes.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Sebastian homes.
2 UnitsInstalled
A lower price per unit on a two-system install for Sebastian homes.
Ideal for a kitchen and wet bar, a second kitchen, or a guest suite in Sebastian.
3 or MoreInstalled
Our lowest per-unit price in Sebastian
For larger Sebastian homes, multi-unit properties, and light commercial spaces in Indian River County.
All prices are installed and include UV sterilization—no hidden fees. Not sure how many you need? We’ll walk your Sebastian 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 Sebastian.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM—results vary in Indian River County.
The lamp operates automatically based on water flow pressure, and can be adjusted—simple for busy Sebastian households.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination—great in Sebastian’s humidity.
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 on the Treasure Coast.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Sebastian homes.

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

Fitted under your sink and commissioned by pros—clean, on-demand water in Sebastian.

We test your Sebastian-area water before and after, so you can see the difference.

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

Lower per-unit pricing when we install two or more—perfect for larger Sebastian homes.
Independent Testing
You don’t 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—ideal for Sebastian households looking to reduce hard-water minerals and improve taste.
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 visit so you know what you’re starting from in Sebastian.
Perfect For
Point-of-use purification—so the water you drink and cook with in Sebastian is the water that gets purified.
Cleaner Water. Better Living. In Sebastian.
Installed by a Florida plumbing company that knows Treasure Coast water—and stands behind the work.
Built with premium materials for reliable, long-term performance in coastal Florida conditions.
The built-in UV lamp is included in the price on every unit we install in Sebastian.
We stand behind our products and the quality of service we bring to Sebastian homes.
Join Sebastian homeowners across Indian River County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking and everyday use in Sebastian.
Tankless purification as you draw—no storage tank, no waiting, great for busy Sebastian kitchens.
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 Sebastian’s humid, coastal conditions. 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, helping reduce hard-water minerals that can contribute to scaling on fixtures and water-using appliances around Indian River County. It sends 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 Sebastian
$995
Installed
Regularly