Dryden Aqua Healthy Swim AFM® Grade #2 – Coarse Grade Glass Filter Media (55 lb Bag)

Dryden Aqua Healthy Swim AFM® Grade #2 – Coarse Grade Glass Filter Media (55 lb Bag)

Dryden Aqua AFM® Grade #2 is a premium, bio-resistant activated filter media made from recycled green and brown glass. Designed for superior filtration performance, this advanced media significantly reduces airborne chloramines, improves water clarity, and enhances overall pool hygiene. AFM® is a direct replacement for traditional sand and standard glass media—offering up to twice the filtration efficiency with no infrastructure changes required.

Engineered for commercial and residential pools alike, AFM® delivers crystal-clear water, lower chemical usage, and long-lasting performance that outperforms conventional filter media.

What Is AFM® (Activated Filter Media)?

AFM® (Activated Filter Media) is a highly engineered filtration material manufactured from carefully selected green and brown glass. Through a proprietary three-step activation process, the glass is transformed into a bio-resistant, self-sterilizing filter media that prevents bacterial growth, channeling, and biofouling.

Unlike ordinary glass sand, AFM® is designed at the microscopic level to provide superior mechanical, electrostatic, and adsorption-based filtration.

Why Choose AFM® Over Sand or Standard Glass Media?

Superior Filtration Performance

• Filters at least 2x better than sand

• Captures particles up to 4x smaller than traditional media

• Prevents channeling and unfiltered water bypass

Bio-Resistant & Self-Sterilizing

• Inhibits bacterial growth and mud-balling

• Reduces the risk of harmful pathogens such as Legionella, Pseudomonas, and Cryptosporidium

• Maintains consistent performance for many years

Healthier Pool Water

• Crystal-clear water

• Lower chlorine consumption

• Fewer toxic disinfection by-products

• Reduced “chlorine smell” in the air

Sustainable & Eco-Friendly

• Made from recycled glass

• Never needs recharging or replacing

• Reduces water, energy, and chemical consumption

Advanced Activation Technology

AFM® is not simply crushed glass—it undergoes a proprietary three-step mechanical and chemical activation process that increases its surface area by up to 300 times. This creates a powerful nano-structured surface that:

• Enhances electrostatic attraction of contaminants

• Improves catalytic and adsorption reactions

• Prevents bacterial colonization

• Allows simple regeneration through normal backwashing

Similar to activated carbon in function, AFM® adsorbs pollutants efficiently—but unlike carbon, it never needs chemical recharging.

How AFM® Differs from Other Glass Filter Media

Activation

AFM® is the only glass media on the market that undergoes a true activation process, making it bio-resistant and dramatically more efficient than standard glass or sand.

Raw Materials

Only green and brown glass is used. The natural metal oxides in these glass types create a negative surface charge, which is enhanced during activation—improving the capture of fine particles.

Precision Manufacturing

Dryden Aqua is a dedicated manufacturer, not a recycling company selling waste byproducts. Each grain is carefully shaped and sized for optimal performance, with no sharp edges that could damage filters or injure users.

Proven Efficiency

Independent testing by IFTS in France confirms that AFM® filters particles significantly smaller than sand and competing glass media.

Where Can You Use AFM®?

AFM® is a direct drop-in replacement for sand or glass media and requires no system modifications. It is compatible with:

• All sand and glass filter systems

• Residential and commercial pools

• Natural and eco pools

• Saltwater pools

• All oxidation and disinfection methods

• All operating temperatures

With over 200,000 installations worldwide, AFM® is trusted for its performance, sustainability, and long-term cost savings.

Product Specifications

• Product Name: Dryden Aqua Healthy Swim AFM® Grade #2

• Grade: Coarse

• Material: Activated recycled green & brown glass

• Bag Weight: 55 lbs

• Application: Pool and spa filtration systems

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Dryden DAISY® 

Additional Information

AFM FAQ Sheet

AFM Brochure

AFM Brochure

SDS Sheet