0% APR financing with Affirm from $167/mo

The AquaOx difference

One system. Every tap. Done right.

AquaOx began with a single goal: protect families from what's really in their water — without the upsells, the rented tanks, or the maintenance treadmill. One whole-house system, built to last, backed for a decade.

300+

contaminants reduced

Chlorine, lead, PFAS, sediment, hardness, taste & odor — at every tap.

6

media layers

Built from NSF-certified parts & media in a single auto-backwashing tank.

10-yr

warranty

End-to-end coverage on the tank and head. Veteran-founded, made in the USA.

5,000+

homes protected

Trusted across the USA since the company began with one discolored-water problem.

Why AquaOx

Ultimate purity. Ultimate protection.

The difference is inside. AquaOx packs more premium filtration media into a single tank than any other system on the market, so it filters more contaminants and lasts longer.

  • Ultimate purity

    6 layers of premium filtration media

    KDF 85 · Garnet · Centaur Catalytic Carbon · Activated Coconut Shell Carbon · Filter-AG. 3× the surface contact time of competitor systems.

  • Patented technology

    Vortech distribution plates

    Double-Vortech design eliminates gravel beds, increases media efficiency, and significantly reduces water use during regeneration cycles.

  • Built to last

    Lasts 2× longer than carbon competitors

    Filter media rated for 10+ years vs. the ~5-year carbon-only systems most competitors sell. In practice, many AquaOx systems we installed 15+ years ago are still running strong.

AquaOx filter media layers cutaway

What makes the AquaOx superior

A side-by-side look at how AquaOx compares to other whole-house systems.

FeatureAquaOxOther systems
Filtration media types6 distinct types1–2 types on average
BackwashingAutomatic, double-VortechManual or none
Pre-sediment filterCaptures debris firstOften a primary stage
Media lifespanRated 10+ years~5 years
Warranty10-year parts & labor1 year typical
Made inUSAVaries

Contaminants library

Filters over 300 contaminants

Browse by what's in your water. Each contaminant has a dedicated guide explaining the health risks, sources, and how AquaOx filters it.

View all 103 contaminants →

A guaranteed clean-water investment

Four reasons your $4,000 is safer with us than with any competitor.

  • 10-Year Warranty

    Full parts & labor coverage.

  • 0% APR Financing

    From $167/mo with Affirm.

  • Made in USA

    Manufactured in the United States.

  • BBB A+ Accredited

    Verified business rating.

🇺🇸 Veteran-founded business.

Thank you for your service. Ask us about your veteran discount.

Call (803) 369-6956
★★★★★4.81 from 190+ verified owners

What owners are saying

★★★★★
"The water is better tasting. The atmosphere around the home is better. Everyone in the house is drinking more water now."
Henry CleareVerified owner
★★★★★
"System was straight forward and simple to install. The quality of the unit is top notch. After a couple weeks my wife and I can really tell the difference in the water running through our pipes."
Robert McEnroeVerified owner
★★★★★
"Outstanding customer service. Water is absolutely fabulous now: soft, not rotten egg smell, no bacteria, pure tasting like Fiji water."
Lloyd HollandVerified owner
★★★★★
"I did months of research and so happy I found the AquaOx. I proudly recommend this system to family and friends."
Robntha G.Verified owner

Read all 190 reviews →

Common questions

What does AquaOx filter from my water?

Chlorine, chloramines, lead, mercury, arsenic, iron, sediment, herbicides, pesticides, VOCs, industrial byproducts. Over 300 contaminants in total. It also reduces fluoride — up to about 40% in independent lab testing — though for fully fluoride-free drinking water we recommend pairing it with our under-sink RO at the kitchen tap.

Do I still need an under-sink RO for drinking water?

It depends on what you want at the kitchen tap. The AquaOx filters 300+ contaminants whole-house, great for showering, laundry, dishes, and drinking. It also reduces fluoride (up to about 40% in independent lab testing), but if you want it fully removed, we recommend pairing AquaOx with our under-sink reverse osmosis at the kitchen tap — RO is the best at-home way to take fluoride all the way down.

What size do I need: Regular or XL?

The standard AquaOx is great for most homes up to 4 bathrooms. For larger homes, choose the XL. That said, the XL has the most filter media of any system on the market. If you want maximum protection and the longest possible service life regardless of home size, the XL is the move.

Do I also need a water softener?

AquaOx is a purifier. It filters contaminants but leaves healthy minerals like calcium and magnesium in your water. If you have hard water (common with well water and in much of the Southwest), you may still want a softener to prevent scale on fixtures, water heaters, and tankless heaters. The AquaOx goes first, the softener after. Not sure if your water is hard? Send us your water report and we will tell you.

Where do I install it?

Wherever your main water line enters your home, most commonly the garage. It can also go in a basement, utility room, or even buried in a crawl space (your plumber digs out a level pad). In warm, non-freezing climates like Florida, outside is fine too. Do not install outside in any climate where water can freeze.

How long does installation take?

A licensed plumber typically installs The AquaOx in 2–4 hours. AquaOx is direct-to-consumer: any licensed plumber can do it. There is no proprietary tooling or certified installer required. The install is three connections: inlet, outlet, and a small drain line.

Will this work for well water?

Yes. AquaOx is built for both city and well water. If you have specific concerns (heavy iron, hydrogen sulfide / rotten egg smell, bacteria), we offer specialty systems and add-ons. Take the quiz or call us at (803) 369-6956.

Will it protect my tankless water heater?

Yes, and we recommend it. Chlorine and chloramines degrade tankless heat exchangers over time; AquaOx filters them. If your water is also hard, pair AquaOx with a softener: tankless manufacturers will void warranties on units that scale up from hard water.

How long does the filter media last?

AquaOx filter media is rated for 10+ years. In practice, many AquaOx systems we installed 15+ years ago are still running strong. The system self-backwashes every 3 days to keep media performing, no manual maintenance required.

What's the warranty?

10-year parts & labor warranty on every AquaOx system. We stand behind every system we ship.

Do you offer financing?

Yes. Affirm offers 0% APR financing on AquaOx systems. The flagship works out to about $167/month over 24 months. Apply at checkout in seconds.

Still have questions? Call (803) 369-6956 or contact us.

Ready for clean water from every tap?

Take the 2-minute quiz to find the right system, or talk to a real human about your water.

Want to know what's in your water first? Test your water →

Find My System