Aquasana AQ-6300 Claryum® 3-Stage Under Sink Water Filter in Brushed Nickel

The Aquasana 6300 Claryum® 3-Stage Under Sink Water Filter is a premium under-sink filtration system designed to deliver cleaner, better-tasting water straight from a dedicated faucet. It reduces 78 contaminants, including chlorine, lead, PFAS, microplastics, pesticides, pharmaceuticals and chloramines, while retaining beneficial minerals such as calcium, potassium and magnesium. This updated 3-stage model includes a 5-micron sediment pre-filter, offers 20% more capacity than the Claryum® 2-Stage, and is WQA tested and certified to NSF/ANSI Standards 42, 53, P473 and 401. It provides a 0.5 gpm flow rate, treats up to 600 gallons, and is designed for easy DIY installation and quick twist-off filter changes.

Key features

• Reduces 78 contaminants, including chlorine, chloramines, lead, PFAS, microplastics, mercury, cysts, VOCs, pesticides and pharmaceuticals.
• WQA tested and certified to NSF/ANSI 42, 53, P473 and 401 for performance claims.
• Includes a 5-micron sediment pre-filter to capture rust, silt and sediment before the main filters.
• Offers 600-gallon capacity or up to 6 months of filtration.
• Delivers a 0.5 gpm rated service flow and is described as 5x faster than the leading pitcher filter.
• Uses selective filtration that keeps naturally occurring minerals like calcium, potassium and magnesium in the water.
• Features easy twist-off filter replacement with no need to disconnect hoses or water lines.
• Comes with an all-metal dedicated faucet available in four finishes, with a no-faucet option also available.
• Supports DIY installation with a step-by-step guide.
• Includes a 1-year limited warranty and 90-day satisfaction guarantee.

Broad-spectrum contaminant reduction

The Claryum® 3-Stage is positioned as a high-performance under-sink filter for households that want more than basic chlorine reduction. Aquasana states that it reduces 78 contaminants and highlights performance figures including 99.995% of cysts, 99.6% of microplastics and lead, 99.7% of PFAS (PFOA/PFOS), 97.3% of chlorine, and 91% of chloramines. That makes it a strong option for customers looking for a more comprehensive drinking water solution.

Selective filtration with mineral retention

Rather than stripping water completely, this system is designed to remove unwanted contaminants while preserving naturally occurring beneficial minerals. Aquasana specifically calls out calcium, potassium and magnesium, which helps position the product as a filter that improves taste and water quality without leaving water flat or demineralised.

Longer-lasting, practical under-sink performance

The 3-stage design combines a sediment pre-filter with two Claryum® filters, giving the system 600 gallons of capacity or around 6 months of use. It also improves on the 2-stage version with 20% more capacity, while maintaining a dedicated under-sink setup with easy filter swaps, DIY-friendly installation, and a 0.5 gpm flow rate for convenient everyday drinking and cooking water.