Ultra-Pure Drinking Water
Reverse Osmosis Water Filter System
Experience the purest drinking water possible. Our reverse osmosis systems remove up to 99% of dissolved contaminants, giving you bottled-water quality right from your tap.
170+ Five-Star Reviews
5.0 Average Rating · Google, Yelp & Nextdoor
WQA Member
Water Quality Association certified professionals
Platinum Seal
Highest WQA product certification standard
IAPMO Certified
International plumbing code compliance certified
Why Choose Reverse Osmosis?
Reverse osmosis is the gold standard for point-of-use drinking water purification. Using a semi-permeable membrane, RO systems remove virtually all dissolved solids, including lead, arsenic, fluoride, nitrates, pharmaceuticals, and more.
- Removes up to 99% of dissolved contaminants
- Better than bottled water — at a fraction of the cost
- Removes lead, arsenic, fluoride, nitrates & more
- Improves taste and odor dramatically
- Under-sink installation — no countertop clutter
- Optional remineralization filter available
Our RO Systems
Choose from our selection of top-rated reverse osmosis systems.
Frequently Asked Questions
What contaminants does reverse osmosis remove?
RO removes 95–99% of dissolved solids including lead, arsenic, nitrates, fluoride, PFAS, pharmaceuticals, chlorine, chromium, and hundreds of other contaminants. It is the most thorough point-of-use drinking water treatment available for residential homes.
Where does the reverse osmosis system install?
Most RO systems install under your kitchen sink and connect to a dedicated faucet mounted on your countertop or sink. Compact tankless models like the Waterdrop G2 take up very little cabinet space.
How does reverse osmosis water taste?
RO-purified water tastes noticeably cleaner and purer because virtually all dissolved solids are removed. Most customers describe it as better than bottled water — without the plastic waste or ongoing expense.
Do I still need a whole house filter if I have an RO system?
They serve different purposes. Your RO system provides ultra-pure drinking water at one tap. A whole-house filter treats all the water in your home — showers, laundry, dishwasher, and every faucet. Many Colorado homeowners use both for complete coverage.
How often does a reverse osmosis system need maintenance?
Pre-filters typically need replacement every 6–12 months, and the RO membrane every 2–3 years, depending on usage and water quality. We offer maintenance reminders and service plans to keep your system performing at its best.
Reverse Osmosis System Cost in Colorado
$800 – $1,800 installed
Price depends on system type (tankless vs. traditional), number of stages, and whether a remineralization filter is added. Includes under-sink installation and a dedicated RO faucet.
Get a Free EstimatePricing & Installation Questions
Service Areas in Colorado
Pure Water Choices provides professional reverse osmosis installation throughout the Denver Metro area and surrounding communities. Locally based in Castle Rock — no long travel windows, no franchise delays.
Reverse Osmosis Installation
Castle Rock, CO
Reverse Osmosis Installation
Parker, CO
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Highlands Ranch, CO
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Lone Tree, CO
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Centennial, CO
Reverse Osmosis Installation
Aurora, CO
Reverse Osmosis Installation
Denver, CO
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Franktown, CO
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Elizabeth, CO
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Monument, CO
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Larkspur, CO
Reverse Osmosis Installation
Sedalia, CO
Related Services
Pure Water Choices handles every aspect of home water treatment — from source to tap.
Whole House Water Filtration
Remove chlorine, sediment & contaminants from every tap in your home.
Learn more →Water Softener Systems
Eliminate Colorado's hard water — protect appliances and feel the difference.
Learn more →Well Water Treatment
Custom multi-stage systems for iron, sulfur, bacteria & hardness.
Learn more →What Our Customers Say
5.0 Stars · 170+ Reviews on Google
Ready for Better Water?
Get a free in-home water test and estimate. Serving Castle Rock, Parker, Highlands Ranch & the Denver Metro.