Filtration Media Certification

Your customers count on you to deliver clean, safe, filtered water—whether it’s for drinking, swimming, or everyday use. At NSF, we help you meet that promise by testing and certifying a wide range of filtration media to ensure they meet public health standards.

We work with many types of filter media, including:

• Activated carbon
• Ion exchange resin
• Sand
• Garnet
• Zeolite
• Ceramic
• Other specialty media.

Filter media products are used in everything from large-scale municipal systems to home water filters and pool equipment. Regardless of the application, NSF certification helps you demonstrate that your product is safe and suitable for the market.

Municipal drinking water

Standard: NSF/ANSI/CAN 61

We test media, including sand, activated carbon, and garnet, to ensure that the product is safe for use in municipal water treatment. Certification under this standard helps you meet regulatory requirements and protect public health.

Residential drinking water systems

Standard: NSF/ANSI 42

For point-of-use filters and other home systems, we evaluate the safety of the filter media to ensure the products are suitable for treating drinking water in residential settings.

Pools, spas, and hot tubs

Standard: NSF/ANSI/CAN 50

We assess the performance and durability of media used in recreational water systems, such as sand in pool filters, to ensure that the products meet the recreational water industry's requirements for safety and reliability.

Why manufacturers choose NSF

Working with us means more than just passing a test. It’s about gaining a partner who understands your business.

We provide:

• One-on-one support: You’ll have a dedicated account manager to guide you through every step of the process.
• Fast, reliable testing: Our labs deliver results on time, helping you stay on schedule and meet your goals.
• Market-ready credibility: The NSF mark is recognized globally, giving your customers peace of mind and opening doors to new markets.