Under-Sink Reverse Osmosis Systems

Clean, great-tasting drinking water on demand, from a dedicated faucet at your sink.

Advanced tankless RO, compact, low maintenance, and built to last.

Tankless RO systems deliver faster flow, take up less space, require less maintenance, and waste significantly less water than traditional tank systems.

Comprehensive Contaminant Reduction

Multi-stage RO removes PFAS, lead, arsenic and 90+ other contaminants.

Unlimited Purified Water

Fresh, clean water on demand. No storage tank, no waiting, and no standing water.

Space Saving Design

Compact systems fit neatly under your sink. Approximately 18" x 6" x 17"

Low Maintenance

Simple filter changes and no complicated upkeep. We handle it for you.

Three System Options

Close-up of a white coffee machine with two control dials labeled 'CF' and 'MRO'. A blue and white sticker indicates NSF/ANSI 372 certification. The machine has a stainless steel tap with a curved spout and a cylindrical handle.

RO Core

Reliable, high-performance reverse osmosis for clean, great-tasting drinking water.

  • 600 gallons per day

  • 8 seconds per 8 oz

  • 2:1 pure to drain ratio

  • Upgradeable with UV + remineralization

A water filtration system with multiple stage filters, digital controls, and a water testing device showing a reading of 0.6, with a clean modern design.

RO Plus

Higher capacity and faster flow, with built-in UV and self-cleaning for long-term reliability.

  • 800 gallons per day

  • 6 seconds per 8 oz

  • 3:1 pure to drain ratio

  • Built-in UV sanitation, TDS display + self-cleaning membrane

  • Upgradeable with remineralization

Water filtration system with a white box labeled pH+ and NSF/ANSI 58 & 372 certification, accompanied by filtration components including a mineral water filer, a metallic faucet, and a cylindrical filter.

RO Pro

Our premium system: the fastest flow with every feature built in, plus smart dispensing.

  • 1200 gallons per day

  • 4.5 seconds per 8 oz

  • 3:1 pure to drain ratio

  • Built-in UV sanitation, TDS display, self-cleaning membrane + remineralization

  • Smart dispensing for precise, on-demand water

Customize Your System

Core and Plus systems can be upgraded with these. The Pro includes both built in.

A white water filter with a label indicating it is a mineral water filter model WD-MNR35, designed to be used with feed water temperature of 41 to 100 degrees Fahrenheit.

Remineralization Filter $39.99
Lasts 12 months / 1,100 gallons. Adds trace amounts of minerals for a smoother taste.

A cylindrical UV sterilizer with a metallic finish and a blue base, emitting purple ultraviolet light from a transparent section in the middle.

UV Water Sterilizer $129.99
Rated to last 50 years. An energy-efficient LED that inactivates bacteria in seconds.

Every System Includes:

A modern kitchen with a white countertop, a stainless steel sink, a tall silver faucet, and potted green plants on the windowsill. Outside the window, there is a view of green trees.

Professional installation

Ongoing filter replacements when you need them

Local, family-owned service and support from our Millcreek team

One-year warranty

How Multi Stage RO Filtration Works

Water passes through pre-filters, a reverse osmosis membrane that removes contaminants down to about 0.0001 micron, and final polishing stages. The result is clean, great-tasting drinking water.

This process addresses a wide range of modern drinking water contaminants, including arsenic, lead, mercury, chromium-6, uranium, PFAS, chlorine, chloramine, disinfection byproducts, pharmaceuticals, endocrine-disrupting compounds, VOCs, nitrates, pesticides, microplastics, radioactive particles, total dissolved solids, and many others.

Ready for Clean, Great-Tasting Water?

From your free consultation to ongoing filter support, we handle everything so you always have clean water on demand. Schedule today and we'll help you choose the right system for your home.

Schedule a complimentary water consultation and we'll help you choose the right system for your home.