High-Flow RO/DI
Engineered storage, pressure, 3/8-inch distribution and high-flow fixtures provide substantially greater instantaneous delivery than conventional residential RO plumbing.
Engineered Water Systems for Westchester
Pure water should have serious flow.
RFPure starts with a complete RO/DI system at $3,395. Then add whole-house protection, higher reserve capacity and parallel high-flow filtration only where the home needs it.
Complete systems from $3,395 installedSynchrony financing available
FilmTec RODI polishing3/8" high-flow deliveryLab verification10-day commissioning
Why RFPure
The system is engineered as one fluid path.
Every stage is selected to work together—from incoming water through final delivery.
Named components
FilmTec membranes, identifiable treatment media, serviceable cartridges and documented replacement paths.
RO + DI architecture
Reverse osmosis performs the primary separation; mixed-bed DI provides final ionic polishing for exceptionally high-purity water.
High-flow delivery
3/8-inch distribution, engineered storage and optional pumping provide high instantaneous delivery instead of conventional restrictive 1/4-inch RO plumbing.
Whole-house protection
Triple Big Blue filtration can be added upstream to protect the entire home. Parallel Triple Big Blue banks provide a high-flow architecture for larger demand.
Laboratory verification
Every completed RFPure installation is tested after commissioning using Tap Score by SimpleLab. For specifically targeted analytes, the acceptance objective is non-detect at the laboratory reporting limit.
Licensed installation
RFP Plumbing LLC · Westchester County Master Plumber License #965 · licensed, bonded and insured.
Start with the use case
Choose the water outcome. RFPure engineers the equipment.
01 · Most common
Drinking + Ice
RO/DI, reserve capacity, refrigerator connection, faucet flow and mineral profile.
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02 · Whole-home protection
Whole-House Protection
Triple Big Blue filtration before water reaches fixtures and the RO system.
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03 · Maximum service flow
Turbo Parallel Filtration
Two Triple Big Blue banks in parallel to divide flow and media loading.
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04 · Specialty
Shower + Hair
Purified-water storage, pressure, temperature and controlled delivery.
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05 · Specialty
Spotless Rinse
RO/DI output for vehicles, glass, chrome, solar panels and exterior use.
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06 · Technical applications
Commercial + Lab
High-purity routing, storage, pressurization and specialty fluid systems.
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Flow without the trickle
RO flow and whole-house flow are different hydraulic systems.
RFPure publishes them separately so the performance claim matches the application.
Triple Big Blue Protection
Whole-house service flow is engineered around cartridge pressure drop, service demand and the building plumbing—not the RO faucet flow rate.
Parallel Triple Big Blue Banks
Two three-housing banks operate in parallel to divide flow and media loading, increasing filtration capacity while reducing restriction during high simultaneous demand.
Verifiable American-made components
We identify the actual component—not merely the brand name.
RFPure prioritizes U.S.-manufactured housings, cartridges, membranes and pressure tanks when the required performance is available and the country of origin can be verified for the exact product installed.
Filter housings
Domestic housing options include manufacturers such as US Water Systems, Harmsco and Shelco when the exact model is documented as U.S.-made.
Sediment + carbon
RFPure stocks and specifies documented domestic sediment and carbon cartridges when the required contaminant capacity and flow characteristics are available.
RO membranes
FilmTec is a primary membrane platform. Additional domestic membrane options can be selected by published rejection, production, pressure requirements and verified origin.
RO pressure tanks
Amtrol and other documented domestic tank manufacturers are selected according to pressure, drawdown, connection size and water-contact construction.
RFPure origin standard: an American office or American brand name is not enough. Country-of-origin claims are tied to the exact housing, cartridge, membrane, tank or other installed component.
Start with your situation
Already researching your water or comparing systems?
Use the detailed RFPure research pages for the evidence. When you are ready, every path leads into the same System Designer.
System comparison
Kangen · Brita · ZeroWater · A.O. Smith
Compare treatment architecture, contaminant reduction, flow and what each system actually provides against White Plains water.
Compare Systems →
White Plains lead notice
Received the Lead Letter?
See what the notice means, what can occur after treated water leaves the municipal system, and the treatment options available at the home.
Read the Lead Response →
Local water research
Westchester Water Reports
Explore municipal water evidence, including Port Chester/Rye, PFAS and other RFPure water-science investigations.
Explore Local Evidence →
Systems from $3,395
Design My System →Synchrony financing available. Apple Pay and major payment methods accepted. Configure the correct system first; choose payment second.
Who is responsible
Patented fluid-delivery design. More than 30 years of plumbing execution.
High-volume + pressure fluid-system design
Harry Otto
Applies eight USPTO-issued patents and international patent work involving high-volume, pressure-controlled fluid-delivery systems to RFPure filtration, storage, pressure and delivery architecture.
30+ years · Master plumbing
Rob Ferro
Founder of RFP Plumbing with more than 30 years in plumbing operations. Westchester County Master Plumber License #965; directs plumbing integration, routing, pressure and installation quality.
Start with the $3,395 system. Build only what your home needs.
Choose storage, flow, whole-house protection, faucets, mineral profile and specialty outlets inside the full RFPure System Designer.
DESIGN MY SYSTEM NOW →See the installed price as you build