See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Saint Josephs home and family.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings—ideal for Saint Josephs kitchens. Four quick-change twist cartridges handle the four filtration stages, with a UV chamber inline between them. There’s no bulky storage tank, so water is purified on demand instead of sitting and waiting.
The first cartridge catches rust, dirt, sand, and larger particles before anything downstream sees them—great for coastal Gulf County homes.
Carbon block media that reduces chlorine, odors, colors, and chemicals—great for coastal Saint Josephs water ahead of the membrane.
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—great for Gulf County homes.
Filtration Stages
Each stage handles what the one before it left behind. UV is the fourth step in the sequence, and it is not filtration at all - it is there to deal with what a filter cannot catch, for extra confidence in coastal Saint Josephs.
Removes rust, dirt, sand and large particles—ideal for coastal conditions.
Reduces chlorine, odors, colors, and chemicals in Saint Josephs water.
Removes up to 99% of dissolved solids, heavy metals, and more—tailored to what we see in Saint Josephs 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—an added layer of confidence for coastal Saint Josephs water. It’s included in the price on every system we install.
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 Saint Josephs and nearby Gulf County homes.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Saint Josephs homes.
2 UnitsInstalled
A lower price per unit on a two-system install for Gulf County homes.
Ideal for a kitchen and wet bar—great for places from Port St. Joe to Cape San Blas.
3 or MoreInstalled
Our lowest per-unit price
Great for larger Gulf 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—whether you’re on the St. Joseph Peninsula or in Port St. Joe.
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.
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—perfect for Saint Josephs households.
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 St. Joseph Bay.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—ready for Saint Josephs install.

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

Installed under your sink and commissioned by pros—built for coastal Saint Josephs homes.

We test your Saint Josephs water before and after, so you can see the difference.

No surprises. One low price includes everything.

Lower per-unit pricing when we install two or more—ideal for Saint Joseph Peninsula homes.
Independent Testing
You do not have to take the performance on faith. The system has been tested by an independent laboratory against the recognised standard for reverse osmosis drinking water systems - a smart choice for Saint Josephs, Florida.
Testing covers removal of over 99.99% of 1,000+ contaminants, including TDS like fluoride, nitrates and nitrites; PFAS (PFOA/PFOS); heavy metals like lead and arsenic; and chloride—helpful for coastal conditions near St. Joseph Bay.
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 exactly what you’re starting from in Saint Josephs.
Perfect For
Point-of-use purification means the water you drink and cook with in Saint Josephs is the water that gets purified.
Cleaner Water. Better Living—here on the Gulf.
Installed by a Florida plumbing company that knows Panhandle conditions—and stands behind the work.
Built with premium materials for reliable, long-term performance in coastal conditions.
The built-in UV lamp is included in the price on every unit we install in Saint Josephs.
We stand behind our products and the quality of service we bring to Saint Josephs.
Join homeowners around Saint Joseph Bay who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Saint Josephs.
Tankless purification as you draw—no storage tank, no waiting, even during winter cold snaps.
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 Saint Josephs homes along the coast. 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 Josephs
$995
Installed
Regularly