See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Heathrow household—especially helpful with mineral-rich Floridan Aquifer water.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges handle the four filtration stages, with a UV chamber inline. There’s no bulky storage tank, so water is purified on demand—ideal for Heathrow’s humid subtropical climate and everyday use.
First cartridge captures rust, dirt, sand, and large particles—helpful with mineral-rich Floridan Aquifer water.
Carbon block media that reduces chlorine, odors, color, and chemicals before the membrane—great for Floridan Aquifer groundwater.
The heart of the system—rejecting dissolved solids and heavy metals, then sending the concentrate to the drain (helpful with hard, mineral-rich water).
The final cartridge polishes the water and adds beneficial minerals back for a balanced pH—great for the Orlando metro.
Filtration Stages
Each stage handles what the one before it left behind—helpful with Orange County’s mineral-rich Floridan Aquifer water that can leave scale. UV is the fourth step and the one stage that is not filtration at all; it’s there to deal with what a filter cannot catch.
Removes rust, dirt, sand, and large particles—common with mineral-rich groundwater.
Reduces chlorine, odors, color, and chemicals common in local tap water.
Removes up to 99% of dissolved solids, heavy metals, and more—ideal for hard-water conditions.
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 to 3 and 5 are the four filtration stages; step 4 is the built-in UV lamp for disinfection—included in the price on every system we install in Heathrow and across Orange County.
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 Heathrow-area homes.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Heathrow homes.
2 UnitsInstalled
A lower price per unit when you install two systems—great for larger Heathrow homes.
Great for a kitchen and wet bar, a second kitchen, or a guest suite in your Heathrow home.
3 or MoreInstalled
Our lowest per-unit price
Ideal for larger Heathrow-area 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 Heathrow 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.
Typically 95% and up to 99.99%—bringing 200–500 PPM tap water to near 0 PPM, or below 25 PPM (results vary by source).
The UV lamp operates 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 set of cartridges is roughly the equivalent of 8,000 bottles of water—less waste around Heathrow.
One Unit, Installed
$995
Installed
Regularly

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

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

Professionally fitted under your sink and commissioned for Heathrow-area water.

We test your water before and after—so you can see the difference in your Heathrow home.

No surprises—one low price includes everything.

Lower per-unit pricing when we install two or more in your Heathrow home.
Independent Testing
You don’t have to take performance on faith. The system has been tested by an independent laboratory against the recognised standard for reverse osmosis drinking water systems.
Testing covers the removal of over 99.99% of 1,000+ contaminants, including total dissolved solids (common with Floridan Aquifer groundwater), fluoride, nitrates/nitrites; PFAS; heavy metals like lead/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 exactly what you’re starting from—especially important with hard, mineral-rich groundwater in the area.
Perfect For
Point-of-use purification—so the water you drink and cook with in Heathrow is the water that gets purified.
Cleaner Water. Better Living. In Heathrow.
Installed by a Florida plumbing company serving Heathrow and the Orlando metro—and we stand behind the work.
Built with premium materials for reliable, long-term performance in Central Florida.
The built-in UV lamp is included in the price on every unit we install in Heathrow.
We stand behind our products and the quality of service we provide in Heathrow.
Join homeowners across the Orlando metro—including Heathrow—who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Heathrow.
Tankless purification as you draw—no storage tank, no waiting, perfect for busy Heathrow households.
Built-in UV helps eliminate bacteria, viruses, and microorganisms—extra peace of mind in humid Central Florida.
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—great for Orange County homes dealing with mineral-rich, hard water from Floridan Aquifer groundwater. 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 Heathrow
$995
Installed
Regularly