See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Harker family.
The System Itself
Designed to fit neatly under your sink and connect with quick-connect fittings. Four quick-change twist cartridges handle the four filtration stages, with a UV chamber inline. No bulky storage tank—so in Harker’s humid subtropical climate, you get purified water on demand instead of water sitting and waiting.
The first cartridge traps rust, dirt, sand, and larger particles—especially helpful for well-water setups common in rural Florida.
Carbon block media that reduces chlorine, odors, colors, and chemicals before the membrane—great for Harker tap or well water.
The heart of the system—rejecting dissolved solids and heavy metals and sending the concentrate to the drain (great for Harker well or municipal water).
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—great for Harker homes.
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 filters can’t catch, which matters whether you’re on a well or municipal water around Harker.
Removes rust, dirt, sand, and large particles—ideal for well or municipal water in Florida.
Reduces chlorine, odors, colors, and chemicals—ideal for Harker water.
Removes up to 99% of dissolved solids, heavy metals, and more—tailored to your Harker water source.
Kills 99.99% of bacteria, viruses and microorganisms.
Adds beneficial minerals for a balanced, healthy pH—great for Harker drinking water.
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 (not filtration). It’s included in the price on every system we install in Harker.
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 Harker homes, whether you’re on a private well or a municipal supply.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Harker homes.
2 UnitsInstalled
A lower price per unit on a two-system install for your Harker home
Ideal for a kitchen and wet bar, a second kitchen, or a guest suite—great for Harker homes with extra sinks.
3 or More Installed
Our lowest per-unit price in Harker
For larger Harker 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 during the Harker 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 Harker, FL.
Typically 95% and up to 99.99%, bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM (results vary in Harker).
The lamp operates automatically based on water flow pressure, and can be adjusted—simple for Harker homeowners.
Keeps water fresh, saves under-sink space, and helps prevent secondary contamination—important in humid subtropical Harker.
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—perfect for Harker households.
One Unit, Installed
$995
Installed
Regularly

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

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

Fitted under your sink and commissioned by pros familiar with Harker water sources.

We test your water before and after—especially important with Harker well vs. municipal supply.

No surprises for Harker homeowners. One low price includes everything.

Lower per-unit pricing when we install two or more in your Harker 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—so Harker families can choose with confidence.
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—especially in rural Florida where Harker homes may be on well water or municipal supply. We test your water on the visit so you know what you’re starting from.
Perfect For
It installs at the point of use—so the water you drink and cook with in your Harker home is the water that gets purified.
Cleaner Water. Better Living. In Harker.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work for Harker homeowners.
Built with premium materials for reliable, long-term performance in Harker’s humid subtropical climate.
The built-in UV lamp is included in the price on every unit we install in Harker.
We stand behind our products and the quality of service we provide in Harker.
Join homeowners in and around Harker who choose Mr. Pure Water for cleaner, better-tasting water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Harker.
The tankless design purifies as you draw, so there’s no storage tank and no waiting—great for busy Harker kitchens.
The built-in lamp helps eliminate bacteria, viruses and microorganisms a filter can’t catch—extra peace of mind for Harker.
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 Harker homes on well water or municipal supply. 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 Harker
$995
Installed
Regularly