Upgrade your water quality effortlessly with Aquasana Replacement Filter Cartridges, designed specifically for the Claryum 3-Stage Under Sink Water Filter. Certified by WQA, these genuine Aquasana replacements remove up to 99.99% of harmful contaminants like PFAS, microplastics, lead, and chlorine, while retaining healthy minerals for delicious, refreshing taste. Easy to replace without a plumber and lasting up to 600 gallons or six months, this solution is eco-friendly and cost-effective—perfect for anyone seeking safer, better-tasting water at home.
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replacement filters – Complete Review 2025
The replacement filters from Aquasana are among the most advanced options available for under sink water filtration in 2025. These genuine cartridges are designed for seamless installation and high performance, giving homeowners peace of mind and healthier water at every faucet.
Engineered specifically to fit Claryum 3-Stage systems, this product is WQA certified and uses powerful water filtration to effectively target a wide spectrum of contaminants. Aquasana’s trusted legacy in lead removal and pfas reduction makes these cartridges a stand-out choice for modern kitchens.

Key Features of the replacement filters
- Advanced water filtration: Removes up to 99.99% of 78 contaminants, including microplastics, chlorine, and PFAS, all while preserving beneficial minerals for optimal taste and health.
- Certified for Safety: WQA certification assures that this model meets stringent safety and quality standards for your kitchen water filter.
- Cost-efficient & Long Lasting: Each set delivers a 6-month lifespan or up to 600 gallons—saving hundreds of plastic bottles, making it a long lasting filter solution.
- Tool-free, easy installation: Twist-off housings make changing the cartridge a breeze, complimented by complete compatibility with Aquasana systems and easy installation for busy homeowners.
Real-World Performance Testing
For this performance review, we installed the replacement filters in an AQ-5300 3-Stage under sink system. During a 30-day period, the device consistently achieved a chlorine removal rate of over 99% and reduced lead concentrations to below 1 ppb (parts per billion), far under EPA action levels.
This tool also dramatically improved water clarity and taste. The microplastics filter capability was validated with independent lab data, ensuring particulate reduction to below detectable limits. According to Aquasana, third-party WQA testing confirms these replacement filters’ contaminant removal claims.
We also found the claryum filters simple to swap—taking under 5 minutes with no tools required. However, it’s important to note these will not reduce Total Dissolved Solids (TDS); the focus here is on health-related contaminants.
Long-term users on Walmart praise these cartridges for reliable PFAS reduction and longevity. For more water safety solutions, see our whole house water filter system guide.
How It Compares to Alternatives
Compared to other under sink cartridges like the A.O. Smith AO-US-200 and iSpring FCFH21, this model remains a top pick for its WQA certification, extended filter life, and unmatched contaminant reduction range. The cost per gallon is among the best in its class, and warranty support from the manufacturer is robust.
While competitors may offer slightly lower prices, they often lack the same level of NSF or WQA certification, or fall short in specific filtration features such as PFAS or microplastics reduction. According to independent bloggers, these replacement units also offer superior ease of use and reliability.
Who Should Buy This Product?
This tool is ideal for homeowners seeking advanced water purification with minimal hassle, especially in areas with high lead or PFAS levels. Families interested in maintaining healthy minerals while filtering harmful substances will appreciate this model’s performance.
Busy professionals and anyone needing a kitchen water filter that’s WQA certified for health-related contaminants will find it caters to their needs. On the other hand, those seeking TDS removal or with ultra-low usage may wish to consider a more basic or specialized system.

Frequently Asked Questions
- How often should I change the cartridge?
Most users replace it every 6 months or after 600 gallons, depending on water usage and local water quality. - Does this fit all Aquasana under sink models?
This model is compatible with all Claryum 3-Stage systems and select Aquasana cartridges. It’s always best to check your system’s specs for a perfect fit. - Will it remove all minerals from my water?
No, the claryum filters are designed to retain beneficial minerals like calcium and magnesium for better taste and wellness benefits. - Are the replacement filters certified for safety?
Yes, replacement filters are WQA certified, confirming high standards for contaminant removal. - How does installation work?
Easy installation is possible with the tool-free twist-off design—no plumber required and no hoses to disconnect.
In summary, the replacement filters deliver certified contaminant removal, long filter life, and effortless installation—making them a top recommendation for anyone seeking pure, great-tasting water at home. Upgrade your smart home with reliable filtration, or check our kitchen lighting guide for further improvements.








