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Aquasana

Aquasana specializes in premium water filtration systems, offering WQA-certified replacement filters for under-sink units that remove 99.99% of PFAS, microplastics, lead, and chlorine.

4 products Updated March 4, 2026

Aquasana Products (4)

1

Aquasana AQ-4105CHR-E Shower Filter: Dermatologist Recommended, Reduces 90% Chlorine, Softer Skin & Healthier Hair, 6-Month Life

Aquasana
9.5
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Significantly improves hair texture, skin hydration, and overall shower quality
  • Easy setup and compatibility with most showers
  • Extended filter life reduces replacement frequency
  • Backed by rigorous certifications and expert endorsements
  • Noticeable results in breathing ease from lower chlorine exposure

Cons

  • Requires initial flush of several minutes to clear carbon fines
  • Filter must be replaced every 6 months for peak performance
  • Best results depend on local water quality variations
2
Prime

Aquasana AQ-C2-R Claryum 2-Stage Replacement Filters | 99.99% PFAS, Lead, Chlorine, Microplastics Reduction | 500 Gal | WQA Certified

Aquasana
9.4
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Exceptional certified reduction of PFAS (99.7%), lead (99.6%), and microplastics (99.6%)
  • Preserves healthy minerals for great-tasting water
  • Easy 1-minute twist replacement, no tools needed
  • Long 500-gallon lifespan at economical cost per gallon
  • High 4/5 rating from 8,492 reviews confirms reliability

Cons

  • Does not reduce Total Dissolved Solids (TDS)
  • Premium price at $206.97 for a set of replacements
  • Compatible only with specific Aquasana Claryum 2-Stage models
3
Prime

Aquasana AQ-C3M-R Claryum 3-Stage Max Flow Replacement Filters: WQA Certified 99.99% PFAS, Lead, Microplastics & Chlorine Reduction | 800 Gallons

Aquasana
9.4
ProductReviews.org score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the ProductReviews.org tool. This score doesn't impact from any manufacturer or sales agent websites. We encourage you to write a review of your experiences with these products. Learn more »
Pros & Cons

Pros

  • Superior contaminant reduction including 99.7% PFAS tested to 20 PPT
  • Selective filtration preserves natural minerals for great-tasting water
  • Long filter life at under 10 cents per gallon for cost savings
  • Quick, tool-free installation compatible with multiple Aquasana models
  • Includes pre-filter and battery for complete, hassle-free maintenance

Cons

  • Does not reduce Total Dissolved Solids (TDS)
  • Compatible only with specific Aquasana Claryum 3-Stage Max Flow systems
  • Higher upfront cost than basic pitcher filter replacements
4
Pros & Cons

Pros

  • IAPMO certified to NSF/ANSI 44 for proven hardness reduction
  • Works with city or well water via reliable ion exchange technology
  • Overflow protection and brine safety valve for secure operation
  • 5/10-Year Limited Warranty with dedicated customer support
  • Customizable control panel shows gallons remaining and modes

Cons

  • Optional pre-filter sold separately to prevent clogs from sediment
  • Requires periodic salt refills and professional installation support
  • Best paired with Aquasana installation kit for optimal setup

Aquasana Brand Guide

Aquasana Brand Overview and History

Aquasana has been at the forefront of water filtration innovation since 1998, when it was founded with a mission to provide families with clean, healthy water without the need for bottled alternatives. Headquartered in Austin, Texas, the brand has grown into a leader in residential water treatment, earning accolades for its cutting-edge technology and commitment to rigorous testing standards. Aquasana's Claryum filtration technology sets it apart, using a multi-stage process that targets a broad spectrum of pollutants while preserving essential minerals for better taste and health benefits. Over the years, Aquasana has expanded its lineup to include whole-house systems, shower filters, and countertop pitchers, but its under-sink replacement filters remain a bestseller due to their convenience and superior performance. With WQA Gold Seal certification, Aquasana ensures every product meets or exceeds industry benchmarks for contaminant reduction.

Key Product Categories and Features

Aquasana excels in the Tools & Home Improvement category, specifically Kitchen & Bath Fixtures > Water Filtration & Softeners > Replacement Water Filters > Replacement Under-Sink Water Filters. Their replacement cartridges are engineered for seamless compatibility with Claryum under-sink systems, making maintenance straightforward.

  • AQ-5200R / AQ-C2-R (Claryum 2-Stage): Rated 4.0/5, this cartridge fits the AQ-5200 under-sink filter. It reduces up to 99.99% of PFAS (forever chemicals), microplastics, lead, chlorine, and 77+ other contaminants. Lasts 6 months or 500 gallons, with easy twist-off installation.
  • AQ-5300+R / AQ-C3M-R (Claryum 3-Stage Max Flow): Also 4.0/5 rated, designed for AQ-5300+ systems. Offers enhanced filtration including cysts, pesticides, and pharmaceuticals, while maintaining high flow rates up to 0.72 GPM. Ideal for larger households, lasts 6 months or 800 gallons.

Both products feature eco-friendly, recyclable materials and are tested to NSF/ANSI standards 42, 53, 401, and P473. Key features include rapid filtration without wastewater, no electricity required, and compact design for under-sink installation.

Why Choose Aquasana?

Choosing Aquasana means investing in proven quality and peace of mind. Unlike basic pitcher filters, Aquasana's under-sink replacements deliver unlimited purified water on demand, reducing plastic waste from bottles. Their certifications guarantee real results—backed by independent lab tests showing dramatic reductions in health risks from emerging contaminants like PFAS, which are linked to serious issues. Customers rave about the improved taste and odor, with many noting softer skin and hair from chlorine removal. Aquasana also offers excellent customer support, including filter subscription services for hassle-free reordering at up to 15% savings. For homeowners prioritizing health, sustainability, and value, Aquasana replacement water filters outperform competitors in longevity, flow, and comprehensive protection. Whether dealing with city water concerns or well water impurities, these cartridges ensure every sip is safe and refreshing.

In addition to superior filtration, Aquasana emphasizes user-friendly design. The quick-change cartridges install in under 2 minutes without tools, minimizing downtime. Their systems are BPA-free and made with high-grade components for durability. Compared to brands like Brita or PUR, Aquasana targets more contaminants without sacrificing minerals like calcium and magnesium, preserving water's natural balance. Regular replacement every 6 months maintains optimal performance, and the brand's transparency with performance data builds trust. For affiliate shoppers seeking top-rated options in replacement under-sink water filters, Aquasana's 4.0/5 ratings reflect reliable satisfaction across thousands of reviews.

FAQ

How often should I replace Aquasana under-sink filters?

Aquasana recommends replacing cartridges every 6 months or after reaching the gallon capacity (500 for AQ-5200R, 800 for AQ-5300+R), whichever comes first, to ensure maximum contaminant reduction.

Are Aquasana filters certified to remove PFAS?

Yes, both AQ-5200R and AQ-5300+R are WQA certified to reduce up to 99.99% of PFAS, along with lead, chlorine, microplastics, and more, per NSF/ANSI standards.

Do these filters affect water flow rate?

No, Aquasana's Claryum technology maintains excellent flow—up to 0.5 GPM for 2-stage and 0.72 GPM for 3-stage—providing filtered water without frustrating slowdowns.

Can I subscribe for Aquasana replacement filters?

Absolutely, Aquasana offers a subscription service that delivers replacements automatically, saving up to 15% and ensuring you never run out of clean water.

Are Aquasana filters compatible with other brands?

Aquasana cartridges are designed specifically for their Claryum under-sink systems and are not compatible with other brands for optimal performance.