AION ESSENTIAL
Comprehensive whole-house treatment built on commercial-grade media — for homes up to 3 bathrooms.
Three treatment mechanisms, not one. Where most systems rely on a single carbon stage, Essential combines catalytic carbon, an active electrochemical redox stage, and a dedicated PFAS media. Catalytic carbon — not the standard GAC most systems use. Roughly twice the surface area, and it works up to 3× faster.
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.
Perfect for 1–2 bathroom homes. At 3 bathrooms, Essential still outperforms competitors' flagship systems on media quality and contact time. Want more capacity or broader coverage — even in a smaller home? Every AION system is an option to you.
What It Removes
Contaminants Addressed
System Configuration
Two-Tank Architecture
Organic Contaminant Treatment
Catalytic carbon + active redox. Two mechanisms in a single upflow tank.
The first tank combines AION CORE catalytic carbon with AION REDOX. AION CORE reduces chlorine and adsorbs organics. AION REDOX adds an electrochemical stage targeting disinfection byproducts and other contaminants in municipal water. This is not a disinfection system.
- Destroys chloramines, THMs & disinfection byproducts
- Active treatment of pesticides and pharmaceutical residues
- Heavy-metal reduction — lead, chromium-6, mercury & copper
PFAS & Emerging Contaminant Treatment
A dedicated stage for the contaminants conventional filtration misses.
The second tank is a dedicated ZVI catalytic bed built specifically for PFAS reduction and emerging contaminants — a stage most whole-house systems don't include at any price.
- PFAS reduction — including PFOA and PFOS
- Microplastics & particulate matter
- Additional organic and heavy-metal capture
Post-polish: 20" Nano Ceramic final filtration.
The Difference
Contact Time Is the Whole Game
Filtration only works if water stays in contact with the media long enough to be treated. Engineers measure it as contact time. Below the threshold each media requires, filtration quietly underperforms — the water looks treated, but the contaminants aren't fully removed.
AION CORE holds its filtration specification in 90 seconds. The commodity carbon used in most whole-house systems needs 3 to 7 minutes to do the same job — contact time it rarely gets at real household flow rates. That's why our media works up to 3× faster, and why a right-sized AION system does more real filtration than a larger system built on slower media.
Essential is engineered to hold that 90-second specification through the full peak demand of a 1–2 bathroom home — the morning rush when multiple fixtures run at once. At 3 bathrooms, Essential still outperforms competitors' flagship systems on media quality and contact time; if you want full specification held through a larger home's peak, Advanced gives you the headroom.
~106L of total filtration media across two upflow tanks — more than most systems hold, in media that works faster than any of them.
Optional Add-On
Add Salt-Free Scale Conditioning
HARD WATER? ADD AION SALT-FREE SCALE CONDITIONING TO ANY SYSTEM.
If you're in Arizona, Texas, or anywhere with hard water, scale is quietly destroying your water heater, fixtures, and appliances right now. AION's salt-free conditioning prevents scale from forming and adhering — no salt, no drain, no wasted water, no sodium added to your water.
Salt-free conditioning prevents scale rather than removing hardness — your water will still test hard. For unusually hard municipal water, we'll confirm your sizing before ordering.
Best For
Who This System Is For
Ownership & Maintenance
Built for Long Service Life
Essential is engineered for long service life and minimal upkeep. Its media is fully regenerable — a simple, low-cost process that restores the bed and extends its life for years, so you replace media rarely rather than routinely.
AION Care Includes
- OXYDES-P regenerant for Tank 1 — a simple regeneration every 6 months keeps the catalytic and redox media performing like new, dramatically extending service life
- CORE PLUS media (Tank 2) — with proper regeneration, service life extends well beyond conventional media; replacement is infrequent
- Nano Ceramic post-polish — periodic replacement
- Step-by-step regeneration instructions — every AION system ships with clear, illustrated guidance
- Optional front spin-down — reusable stainless screen, no cartridge to replace
Regular regeneration is the difference between media that lasts years and media that wears out. AION Care makes it simple.
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. System-level certification results will be published on this page as they are received.
Explore AION ESSENTIAL
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
Water source & installation
What is AION designed to do?
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.
Can I use AION for a private well or untreated water?
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.
Who installs my system?
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.