See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for your Marcy home.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings—perfect for Marcy kitchens. Four quick-change twist cartridges handle the four filtration stages, with a UV chamber inline. 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.
Carbon block media that removes chlorine, odors, colors, and chemicals before the membrane—great for Marcy tap water.
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 Marcy families.
Filtration Stages
Each stage handles something the one before it left behind. UV is the fourth step in the sequence and the one stage that is not filtration at all - it is there to deal with what a filter cannot catch.
Removes rust, dirt, sand, and large particles.
Removes chlorine, odors, colors, and chemicals for cleaner-tasting water in Marcy.
Removes up to 99% of dissolved solids, heavy metals, and more.
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—not filtration—and it’s included in the price on every system we install in Marcy.
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 in Marcy.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Marcy homes.
2 UnitsInstalled
A lower price per unit on a two-system install for your Marcy home
Great for a kitchen and wet bar, a second kitchen, or a guest suite in your Marcy home.
3 or MoreInstalled
Our lowest per-unit price in Marcy
Ideal for larger Marcy 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 Marcy property with you as part of 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 Marcy homes.
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—ideal for humid subtropical Marcy.
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 hauling and waste in Marcy.
One Unit, Installed in Marcy
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—everything for a clean install in Marcy.

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

Fitted under your sink and commissioned by pros—perfect for Marcy homes.

We test your water in Marcy before and after, so you can see the difference.

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

Lower per-unit pricing when we install two or more—ask about multi-sink setups in Marcy.
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.
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 Marcy 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 Marcy is the water that gets purified.
Cleaner Water. Better Living. In Marcy.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work in Marcy.
Built with premium materials for reliable, long-term performance in Marcy’s humid subtropical climate.
The built-in UV lamp is included in the price on every unit we install in Marcy.
We stand behind our products and the quality of service we provide in Marcy.
Join Marcy homeowners who choose Mr. Pure Water for clean, great-tasting water at home.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday life in Marcy.
Tankless purification as you draw—no storage tank, no waiting, just clean water in Marcy.
The built-in UV lamp helps eliminate bacteria, viruses, and microorganisms filters can’t catch—extra peace of mind in Marcy.
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 Marcy’s humid subtropical climate, where clean, fresh-tasting water matters year-round. 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 Marcy
$995
Installed
Regularly