Stock Take in Progress: 25 February – 2 March 2026.
We remain open and will continue processing orders as normal. Please note that selected items may experience slight dispatch delays during this period. Thank you for your understanding and continued support.


AFM® Grade 0 is the finest grain activated glass filter media offered by Dryden Aqua. With a particle size of 0.25–0.50 mm, it provides exceptional micro‑filtration performance, capturing particles down to less than 1 micron. Designed for polishing or top layers in multi‑grade beds, this media improves water clarity, reduces chlorine demand, and resists bacterial growth. A 25 kg bag is ideal for high‑specification pools, drinking water systems, and other filtration setups requiring ultra‑fine filtration.
• Particle size: 0.25–0.50 mm (Grade 0)
• 25 kg bag — suitable for full bed or top layer use
• Activated surface resists bacterial growth and biofouling
• Highest surface area and fine particle retention of the AFM® range
• Manufactured from recycled green and brown glass
• NSF certified for drinking water applications
✓ Captures ultra‑fine particles for crystal clear water
✓ Reduces need for coagulants and flocculants
✓ Improves hygiene and swimmer comfort by lowering chloramine formation
✓ Less frequent and more effective backwashing
✓ Durable, long‑lasting media with no degradation under normal use
Particle Size Range: 0.25–0.50 mm
Effective Size (d10): approx. 0.25–0.29 mm
Uniformity Coefficient (d60/d10): 1.3–1.8
Bulk Bed Density (uncompacted): ~1.24 kg/L
Hardness: ~5.5–6.5 Mohs
Bag Weight: 25 kg
1 × 25 kg bag of AFM® Grade 0 Activated Filter Media (0.25–0.50 mm)
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