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Pure, clean drinking water for your home. Reverse osmosis systems remove 99.9% of contaminants including PFAS, lead, microplastics, and chlorine. Undersink, countertop, and premium options with professional installation available.

Removes 99.9% Contaminants NSF Certified Free CA Delivery
99.9%
Contaminant Removal
1,000+
Contaminants Removed
$0.03
Per Gallon Cost
30 min
DIY Install Time

What Is Reverse Osmosis?

Reverse osmosis (RO) is the gold standard of home water purification. It works by forcing water through a semi-permeable membrane with pores so tiny (0.0001 microns) that virtually nothing passes through except pure water molecules. Dissolved salts, heavy metals, chemicals, bacteria, viruses, microplastics — they're all left behind.

Modern RO systems go beyond just the membrane. They typically include multiple filtration stages: a sediment pre-filter catches particles, an activated carbon filter removes chlorine and organic chemicals, the RO membrane handles everything else, and a final post-filter (often with remineralization) polishes the water and adds back beneficial minerals for taste.

The result? Water that's 99.9% pure, tastes incredibly clean, and is free from the contaminants that make headlines — PFAS, lead, microplastics, chromium-6, and hundreds more. All from a compact system that fits under your kitchen sink.

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RO vs Pitcher Filter vs Fridge Filter

Not all water filters are created equal

FeatureReverse OsmosisPitcher FilterFridge Filter
PFAS RemovalYes (90-99%)NoNo
Lead RemovalYes (99%+)Partial (some models)Partial
MicroplasticsYes (99%+)NoNo
Chlorine/TasteYesYesYes
FluorideYesNoNo
Total Contaminants1,000+5-155-20
Cost Per Gallon$0.03-$0.06$0.15-$0.30$0.10-$0.20
Flow RateFast (tankless)Slow (gravity)Moderate
Annual Filter Cost$30-$80$40-$80$40-$60

Pitcher filters are better than nothing, but they only scratch the surface. If you want real protection from the contaminants that matter most — PFAS, lead, microplastics — reverse osmosis is the only reliable option.

What Does Reverse Osmosis Remove?

Comprehensive protection against 1,000+ contaminants

Lead99%+ removed
PFAS90-99% removed
Chlorine99%+ removed
Fluoride95%+ removed
Microplastics99%+ removed
Arsenic97%+ removed
Mercury97%+ removed
Bacteria99.99% removed
Chromium-697%+ removed
Nitrates90%+ removed
Pesticides95%+ removed
Pharmaceuticals95%+ removed
Chloramine95%+ removed
Cadmium98%+ removed
Radium95%+ removed
TDS (Total Dissolved Solids)95-99% removed

California Water Quality Alert

California has some of the most contaminated tap water in the nation

PFAS
Detected in 70%+ of CA water systems. "Forever chemicals" linked to cancer.
Lead
Homes built before 1986 may have lead pipes or solder. No safe level of lead.
Chromium-6
The "Erin Brockovich" chemical. Found in most CA water supplies at levels above health guidelines.
Microplastics
Detected in all tested California tap water. Long-term health effects still being studied.

Read the Full CA Water Quality Report PFAS Removal Guide

Health Benefits of Filtered Water

Clean water isn't just about taste — it's about protecting your health and your family's health from contaminants that accumulate in your body over time:

  • Eliminates PFAS exposure — "forever chemicals" that accumulate in your body and are linked to cancer, thyroid disease, immune system damage, and reproductive issues
  • Removes lead — there is no safe level of lead exposure, especially for children. Even trace amounts affect brain development and organ function.
  • Filters microplastics — present in virtually all tap water, microplastics carry harmful chemicals and are associated with inflammation and cellular damage
  • Better hydration — when water tastes clean and pure, you naturally drink more of it
  • Better cooking — clean water makes better coffee, tea, rice, soup, and everything you cook with water
  • Stops buying bottled water — save $500-$1,500/year and eliminate plastic waste. RO water is purer than most bottled water.

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Frequently Asked Questions

Reverse osmosis (RO) forces water through a semi-permeable membrane with microscopic pores (0.0001 microns) that block virtually everything except pure water molecules. It removes up to 99.9% of contaminants including lead, PFAS, chlorine, fluoride, microplastics, arsenic, and over 1,000 other substances.
Home RO systems range from $150-$1,000+. Basic undersink systems start at $150-$300, mid-range smart systems run $300-$600, and premium tankless systems cost $500-$1,000+. Annual filter replacement costs are typically $30-$80.
Yes! Most under-sink RO systems are DIY-friendly and install in 30-60 minutes. Countertop systems need no installation at all. If you prefer professional help, we offer installation services.
Yes. Reverse osmosis is one of the most effective methods for removing PFAS (forever chemicals), eliminating 90-99% of PFAS compounds. Standard carbon filters alone are not effective against PFAS.
RO is far more effective. Pitcher filters mainly remove chlorine taste and some lead (5-15 contaminants). RO removes 1,000+ contaminants including PFAS, microplastics, fluoride, and heavy metals. RO also costs less per gallon long-term.
Sediment pre-filters: every 6 months. Carbon filters: every 6-12 months. RO membrane: every 2-3 years. Smart systems monitor filter life automatically and alert you when replacement is needed.
Absolutely. RO water is among the purest drinking water available. Premium systems include remineralization filters that add back beneficial minerals (calcium, magnesium) for taste and health benefits.
A reverse osmosis system is the best choice for California due to documented PFAS contamination, lead in older pipes, chloramine treatment, and hard water issues across the state.
Traditional RO systems have a 3:1 or 4:1 waste ratio. Modern tankless systems like Waterdrop have improved this dramatically to 2:1 or even 1.5:1, wasting far less water than older designs.
RO water tastes incredibly clean and pure — no chlorine taste, no mineral taste, no off-flavors. Systems with remineralization add a slight, pleasant mineral taste similar to premium bottled water.

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