The Aquasana Claryum® 3-Stage Under Sink Water Filter is a high-quality filtration system designed to provide cleaner, great-tasting drinking water from a separate tap. It is engineered to reduce up to 78 contaminants, including chlorine, lead, PFAS, microplastics, pesticides, pharmaceuticals and chloramines, while allowing essential minerals like calcium, potassium and magnesium to remain. This enhanced 3-stage system features a 5-micron pre-filter for sediment, delivers 20% greater capacity than the previous 2-stage version, and meets rigorous NSF/ANSI standards (42, 53, P473 and 401) with WQA certification. With a flow rate of 0.5 gallons per minute and a lifespan of up to 600 gallons, it offers reliable performance alongside straightforward DIY installation and simple twist-off filter replacement.

Key features

• Effectively reduces up to 78 contaminants, including chlorine, chloramines, lead, PFAS, microplastics, mercury, cysts, VOCs, pesticides and pharmaceuticals

• Independently tested and certified to NSF/ANSI Standards 42, 53, P473 and 401

• Integrated 5-micron sediment pre-filter helps capture rust, dirt and particulates

• Provides up to 600 gallons of filtration, typically lasting around 6 months

• Maintains a steady 0.5 gpm flow rate, offering faster performance than typical jug filters

• Retains beneficial minerals such as calcium, potassium and magnesium

• Quick-change twist-off filters allow replacement without disconnecting plumbing

• Supplied with a durable all-metal tap in multiple finish options, or available without a tap

• Designed for straightforward installation at home

• Backed by a 1-year limited warranty and 90-day satisfaction guarantee

Advanced contaminant reduction

This system is designed for households seeking more comprehensive filtration than standard solutions. It targets a wide range of contaminants, with performance claims including near-total removal of cysts, significant reduction of microplastics and lead, and high effectiveness against PFAS, chlorine and chloramines. This makes it a strong choice for improving overall drinking water quality.

Selective filtration technology

Unlike some filtration systems that strip water entirely, this unit uses a targeted approach that removes unwanted substances while preserving naturally occurring minerals. By retaining elements such as calcium, potassium and magnesium, it helps maintain a more natural taste and balanced water profile.

Enhanced capacity and everyday usability

The three-stage configuration, including a sediment pre-filter and dual filtration stages, delivers up to 600 gallons of treated water, equating to roughly six months of use. With increased capacity over the previous model, combined with a consistent flow rate and user-friendly maintenance, it is well-suited to daily drinking and cooking needs.