AFM / DGS / Glass Media

Explore our premium range of AFM® (Activated Filter Media), DGS (Dryden Glass Sand), and other high-performance glass filtration media—engineered as a superior alternative to traditional silica sand in both water treatment and swimming pool filtration applications.

These advanced media types are made from recycled, refined glass, offering enhanced filtration performance, bio-resistance, and longer service life. AFM® is activated via a proprietary process by Dryden Aqua, giving it self-sterilising properties that inhibit bacterial growth, while DGS provides cost-effective depth filtration with minimal channeling or backwash loss.

Suitable for use in domestic, commercial, and industrial sand filter vessels for borehole water, rainwater harvesting, greywater reuse, swimming pools, fishponds, and food & beverage applications.

This collection includes:

• AFM® Grade 1, 2 & 3 – for fine to coarse filtration layers
• DGS Glass Media – standard and premium grades
• NSF 50 Certified – safe for drinking and pool water
• Compatible with all standard sand filters
• Suitable for new installations or replacing existing media

✔ Filters down to <1 micron with proper setup
✔ Reduces chlorine & chemical demand in pools
✔ Resists clumping and biofouling – unlike sand
✔ Lower backwash frequency & water usage
✔ Sustainable & environmentally responsible