See the purity, trust the technology. A tankless under-sink system that delivers ultra-pure, clean, refreshing water on demand for Oakland families.
The System Itself
The whole system fits under your sink and connects with quick-connect fittings. Four quick-change twist cartridges provide the four filtration stages, with a UV chamber inline. No bulky storage tank—so in Oakland’s warm, humid climate, water is purified on demand instead of sitting.
The first cartridge—catching rust, dirt, sand, and larger particles before anything downstream sees them.
Carbon block media that reduces chlorine, odors, color, and chemicals before the membrane—ideal for Orange County 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.
Filtration Stages
Each stage handles what the one before it left behind. UV is the fourth step—and it’s not filtration at all. In Central Florida’s warm, humid climate, it helps address what filters can’t catch.
Removes rust, dirt, sand, and large particles from your Oakland water.
Reduces chlorine, odors, color, and chemicals for cleaner-tasting water in Oakland.
Removes up to 99% of dissolved solids, heavy metals, and more.
Kills 99.99% of bacteria, viruses, and microorganisms—great for Central Florida’s humid climate.
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—helpful in Central Florida’s warm, humid conditions where stagnant plumbing can support microbial growth. 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 in Oakland. Every unit includes UV sterilization and professional installation.
1 UnitInstalled
Regularly $2,000 - you save $1,005
The standard install, and the right fit for a kitchen sink in most Oakland homes.
2 UnitsInstalled
A lower price per unit on a two-system install for Oakland homes
Ideal for an Oakland kitchen and wet bar, a second kitchen, or a guest suite.
3 or MoreInstalled
Our lowest per-unit price in Oakland
For larger Orange County 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 Oakland 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 Oakland, FL.
Typically 95% and up to 99.99%, taking 200–500 PPM tap water down 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—important in a humid subtropical climate like Oakland’s.
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—great for Oakland households.
One Unit, Installed in Oakland
$995
Installed
Regularly

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

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

Fitted under your sink and commissioned by pros serving Oakland, FL.

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

No surprises—one low price includes everything for your Oakland install.

Lower per-unit pricing when we install two or more in your Oakland 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—great peace of mind for Oakland, FL.
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 Oakland visit so you know what you’re starting from.
Perfect For
It goes in at the point of use—so the water you drink and cook with in your Oakland kitchen is the water that gets purified.
Cleaner Water. Better Living. In Oakland.
Installed by a Florida plumbing company serving Oakland and Orange County—and standing behind the work.
Built with premium materials for reliable, long-term performance in Oakland, FL.
The built-in UV lamp is included in the price on every unit we install in Oakland.
We stand behind our products and the quality of service for Oakland homeowners.
Join Oakland homeowners across Orange County who choose Mr. Pure Water.
Product Assurances
Better-tasting, odor-free water for drinking, cooking, and everyday use in Oakland.
The tankless design purifies as you draw, so there’s no storage tank and no waiting—ideal for busy Oakland kitchens.
The built-in UV lamp helps in humid Central Florida by reducing microbes 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 Oakland’s humid subtropical climate where disinfection and maintenance matter. 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 Oakland
$995
Installed
Regularly