DGS Grade 1 is a high‑performance glass filtration media manufactured from 100% recycled glass, engineered to replace or upgrade traditional silica sand in pool and water filtration systems. With fine angular particles between 0.3 and 1.0 mm, this media captures very small particulate matter, improving overall water clarity with reduced backwashing. The 25 kg bag is ideal for full media charges in standard filters or for layering with coarser grades to optimise filter beds.

• Key Features

• Particle size: 0.3‑1.0 mm – fine glass granules for ultra‑fine filtration
• 25 kg weight per bag – sufficient for full media charges in many sand filters
• Made from high‑purity recycled glass; washed and graded to minimise dust and fines
• Bulk bed density approx. 1.25 kg/L
• Low levels of loose organics and ferrous metals; high hardness (>7 Mohs)
• Uniformity coefficient low (< 1.85) for even flow and consistent performance

✓ Benefits

✓ Captures finer particles than standard sand, improving the clarity of pool water
✓ Shorter and more efficient backwash cycles due to finer media performance
✓ Reduces chemical usage over time by removing more particulate contaminants
✓ More stable performance over extended filtration periods
✓ Eco‑friendly choice by using recycled material

Technical Specifications

• Particle Size Range: 0.3‑1.0 mm

• Effective Size: ~0.40 mm

• Bulk Bed Density: ~1.25 kg/L

• Hardness: >7 Mohs

• Uniformity Coefficient: <1.85

• Loose Organics Content: ~95 g per ton

• Ferrous Metal Content: ~13 g per ton

• Weight per Bag: 25 kg

What You Get

1 × 25 kg bag of DGS Grade 1 Glass Sand Media