See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean and refreshing water on demand for you and your family in Grayvik, Florida.
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 busy Grayvik households.
The first cartridge catches rust, dirt, sand, and larger particles—before anything downstream ever sees them.
Carbon block media that takes out chlorine, odors, colors and chemicals ahead of the membrane—great for Grayvik tap water.
The heart of the system, rejecting dissolved solids and heavy metals and sending the concentrate to the drain.
The final cartridge, polishing the water and adding beneficial minerals back for a balanced pH.
Filtration Stages
Each stage handles what the one before it left behind. UV is the fourth step in the sequence, and it’s not filtration at all—it’s there to handle what filters can’t catch.
Removes rust, dirt, sand, and large particles.
Removes chlorine, odors, colors and chemicals from your Grayvik water.
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, which is not filtration but disinfection—and it’s included in the price on every system we install in Grayvik.
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 Grayvik, FL.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Grayvik homes.
2 UnitsInstalled
A lower price per unit on a two-system install in Grayvik
Great for a kitchen and wet bar, a second kitchen, or a guest suite in Grayvik.
3 or MoreInstalled
Our lowest per-unit price in Grayvik
For larger Grayvik 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 your Grayvik 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 Grayvik, FL.
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—great for humid subtropical Florida 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—less plastic waste for Grayvik, FL homes.
One Unit, Installed in Grayvik
$995
Installed
Regularly

Unit, all four cartridges, faucet, fittings & all parts—installed in Grayvik.

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

Fitted under your sink and commissioned by Grayvik water purification pros.

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

No surprises—one low price includes everything for Grayvik homes.

Lower per-unit pricing when we install two or more in your Grayvik home.
Independent Testing
You don’t have to take performance on faith. This 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 Grayvik 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 Grayvik is the water that gets purified.
Cleaner Water. Better Living. Right here in Grayvik.
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 Grayvik’s humid subtropical climate.
The built-in UV lamp is included in the price on every unit we install in Grayvik.
In Grayvik, we stand behind our products and the quality of our service.
Join homeowners in Grayvik who choose Mr. Pure Water for cleaner, better-tasting water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Grayvik.
Tankless purification as you draw—no storage tank, no waiting, just fresh water in Grayvik.
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 Grayvik homes. 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 Grayvik
$995
Installed
Regularly