See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for Jay Jay families.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges carry the four filtration stages, and a UV chamber sits inline between them. There is no bulky storage tank, so the water is purified on demand rather than sitting and waiting—ideal for Jay Jay’s humid subtropical climate.
The first cartridge—catching rust, dirt, sand, and larger sediment common in variable groundwater sources before anything downstream sees it.
Carbon block media that reduces chlorine, odors, color, and chemicals before the membrane—great for Jay Jay water sources.
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 Jay Jay’s moderate hardness.
Filtration Stages
Each stage handles what the one before it left behind. In Jay Jay—where groundwater sources can vary by well or utility—UV is the fourth step and the one stage that is not filtration at all; it’s there to address what a filter may not catch.
Removes rust, dirt, sand, and large particles—helpful with variable groundwater sources.
Reduces chlorine, odors, colors and chemicals.
Removes up to 99% of dissolved solids, heavy metals and more (results vary by Jay Jay water source).
Kills 99.99% of bacteria, viruses and microorganisms.
Adds beneficial minerals for a balanced, healthy pH—ideal for Jay Jay’s moderate-hard 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. In Jay Jay, where groundwater mineral and sediment levels can vary, UV adds extra peace of mind—and 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 Jay Jay homes.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Jay Jay homes.
2 UnitsInstalled
A lower price per unit on a two-system install for Jay Jay homes
Great for a kitchen and wet bar, a second kitchen, or a guest suite in Jay Jay.
3 or MoreInstalled
Our lowest per-unit price
For larger Jay Jay 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 in Jay Jay 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.
Typically 95% and up to 99.99%, bringing 200-500 PPM tap water to near 0 PPM, or below 25 PPM (results vary by Jay Jay source water).
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—especially helpful in Jay Jay homes.
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.
One Unit, Installed
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—everything for your Jay Jay install.

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

Fitted under your sink and commissioned by pros—ideal for Jay Jay homes.

We test your Jay Jay 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 in the same Jay Jay home.
Independent Testing
You don’t 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. In Jay Jay, mineral content and sediment can vary by well or utility—so we test your water on the visit.
Perfect For
Point-of-use filtration—so the water you drink and cook with in Jay Jay is the water that gets purified.
Cleaner Water. Better Living. In Jay Jay.
Installed by a Florida plumbing company that’s been doing this a long time—and stands behind the work.
Built with premium materials for reliable, long-term performance in Jay Jay’s humid subtropical climate.
The built-in UV lamp is included in the price on every unit we install in Jay Jay.
We stand behind our products and the quality of our service in Jay Jay.
Join Jay Jay homeowners who trust Mr. Pure Water for cleaner, better-tasting water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Jay Jay.
Tankless purification as you draw—no storage tank, no waiting, just fresh water for Jay Jay.
The built-in UV lamp helps eliminate bacteria, viruses and microorganisms filters 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—great for Jay Jay homes where groundwater mineral content and sediment can vary by well/utility source. 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 Jay Jay
$995
Installed
Regularly