See the purity, trust the technology. A tankless under-sink system that delivers ultra-clean, refreshing water on demand—perfect for Sewall’s Point families on the Treasure Coast.
The System Itself
Designed to fit neatly 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, you get purified water on demand—ideal for busy Sewall’s Point kitchens.
The first cartridge traps rust, dirt, sand, and larger particles—helpful for coastal Martin County water before it reaches the next stages.
Carbon block media reduces chlorine, odors, color, and chemicals before the RO membrane—great for coastal Martin County 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.
Filtration Stages
Each stage tackles what the one before it left behind. UV is step four—and it’s not filtration at all. It adds an extra layer of protection for what filters can’t catch, a smart upgrade for Treasure Coast homes.
Removes rust, dirt, sand, and large particles—great for Martin County’s hard water.
Reduces chlorine, odors, color, and chemicals for better-tasting water.
Removes up to 99% of dissolved solids, heavy metals, and more—helpful with Martin County’s hard-water minerals.
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 handle filtration; step 4 is the built-in UV lamp for disinfection—included in the price on every system we install in Sewall’s Point.
Pricing
The systems are identical—the only difference is how many we install on the same visit. Every unit includes UV sterilization and professional installation for Sewall’s Point and nearby Stuart.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install—and the right fit for a kitchen sink in most Sewall’s Point homes.
2 UnitsInstalled
A lower price per unit when you install two systems in the same home.
Great for a kitchen plus a wet bar, a second kitchen, or a guest suite in Sewall’s Point.
3 or MoreInstalled
Our lowest per-unit price
Great for larger Martin 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 your Sewall’s Point 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 Sewall’s Point.
Typically 95% and up to 99.99% reduction—bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM.
The UV lamp runs 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.
One full cartridge set equals about 8,000 bottles—less plastic headed toward the Indian River Lagoon.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Sewall’s Point installs.

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

Fitted under your sink and commissioned by pros serving Sewall’s Point and nearby Stuart.

We test your water before and after—so you can see the difference in Martin County’s hard water.

No surprises—one low price includes everything.

Lower per-unit pricing when we install two or more in your Sewall’s Point home.
Independent Testing
You don’t have to take performance on faith. This system has been tested by an independent lab to the recognized standard for reverse osmosis drinking water systems—great peace of mind for Sewall’s Point families.
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. With hard water common in Martin County, we test your water during the visit so you know your starting point.
Perfect For
Point-of-use purification—so the water you drink and cook with in Sewall’s Point is the water that gets treated.
Cleaner Water. Better Living in Sewall’s Point.
Installed by a Florida plumbing company that knows Martin County homes—and stands behind the work.
Built with premium materials for reliable, long-term performance in coastal Martin County.
The built-in UV lamp is included in the price on every unit we install in Sewall’s Point.
We stand behind our products and the quality of our work in Sewall’s Point.
Join homeowners in Sewall’s Point and Martin County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday life in Sewall’s Point.
Tankless purification as you pour—no storage tank, no waiting, just fresh water for Sewall’s Point.
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 Sewall’s Point homes dealing with Martin County’s hard water. 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