Everything Essential protects against — with upgraded media, 70% more of it, and the widest contaminant range AION makes. For homes up to 4 bathrooms, and available to any smaller home that wants more.
Essential's catalytic carbon has roughly twice the surface area of commodity carbon. Advanced adds AION CORE MAX — up to 6× the surface area of commodity carbon — in a packed bed holding 70% more total media. Faster media. Stronger media. More of it.
Covers homes up to 4 bathrooms. Available to any home that wants broader coverage and longer service life — even smaller homes. 4+ bathrooms — book a consultation and we'll confirm your sizing.
A tailored recommendation begins with a free consultation.
Designed for municipal water. AION systems are engineered for city-supplied water; we do not sell them for private wells or surface water.

What It Removes
Everything Essential removes, plus a wider spectrum of emerging and industrial contaminants:
System Configuration
Catalytic carbon + active redox, at greater volume than Essential.
50L of AION CORE catalytic carbon paired with 40L of AION REDOX in a single upflow tank. CORE reduces chlorine and adsorbs organics; REDOX targets disinfection byproducts and other contaminants in municipal water. Larger beds than Essential mean more capacity and higher flow headroom. This is not a disinfection system.
90L of CORE MAX — the highest-capacity media AION makes.
CORE MAX is a FerroPhos-coated activated carbon built on covalent- and metal-organic framework technology, with 6,000+ m²/g surface area — the highest in the AION line, and roughly three times that of standard catalytic carbon. It captures the widest contaminant range AION treats.
Post-polish: 20" Nano Ceramic final filtration.
The Difference
Every AION system is built on media that holds its filtration specification in 90 seconds — where the commodity carbon in most whole-house systems needs 3 to 7 minutes it never gets at household flow. Advanced takes that fast-acting media and scales it up.
~180L of total filtration media — 70% more than Essential — across larger upflow tanks. More media means more contact time, more capacity, and more flow headroom, so the system holds full specification through the peak demand of a 2.5–3 bathroom home with margin to spare.
Advanced also adds AION CORE MAX — our highest-capacity media, with the widest contaminant range in our standard line. It's the tier for homes that want every category of contaminant addressed, with the contact time to do it properly.
Best For
Larger than 4 bathrooms, 5,000+ sq ft, or 1.25"+ plumbing? Book a consultation for Estate.
Ownership & Maintenance
Advanced media is fully regenerable — a simple, low-cost process that restores the beds and extends their life for years. You regenerate cheaply; you replace rarely.
AION Care includes:
PERFORMANCE & SERVICE DISCLOSURES
Performance: AION system performance is based on engineered specifications using documented manufacturer media specifications. Specific performance in each installation varies based on influent water chemistry, flow rate, service interval adherence, and contaminant concentration.
About PFAS treatment: PFAS (per- and polyfluoroalkyl substances) include thousands of synthetic compounds with varying chemistry. AION systems are engineered to treat the six PFAS compounds with EPA-finalized Maximum Contaminant Levels (PFOA, PFOS, PFNA, PFHxS, HFPO-DA/GenX, PFBS). Performance varies by compound — long-chain PFAS are captured with higher efficiency; short-chain PFAS require extended bed depth and capacity for sustained performance.
Service requirements: AION system performance depends on adherence to regeneration and replacement schedules. Whole-house regenerable media require chemical regeneration every 6 months. AION ships consumables on schedule to active subscribers. Subscription is required for consumable shipment.
Certifications: AION whole-house systems are currently undergoing third-party NSF/ANSI certification testing (est. Q4 2026). All performance claims are based on the certified specifications of the individual filter media used in each stage — each sourced from NSF-certified media manufacturers with published reduction data.
Book a free consultation to review your home, municipal water, and the right system configuration.
Ready to explore your options? Book a free consultation
Before you order
AION systems are designed to reduce chlorine, chloramine, disinfection byproducts, sediment, and a broad range of contaminants in municipal water. Performance figures refer to component testing under stated conditions; results in your home depend on incoming water and proper installation and maintenance.
AION systems are not disinfection systems and are not designed or sold for water of unknown microbiological quality, including private wells and surface water. If your home is not served by a municipal utility, these systems are not the right fit. Do not rely on an AION system to make unsafe water safe to drink.
Installed by you, or by a licensed plumber you hire. AION ships the system with step-by-step instructions and technical specifications. Push-fit connections simplify many installations, but plumbing and site-specific fittings vary by home. AION does not send technicians, perform installations, or take responsibility for work performed by you or your contractor. Follow local plumbing code; if you have unusual pressure, nonstandard connections, or a drain requirement, consult a licensed plumber before ordering. For AION MAX, we recommend a licensed plumber because its valves require a drain and power.