• Manufactured from special Kraft paper of pure cellulose impregnated with non-phonetic resins
• Treated to guarantee high absorbent capability
• Conferring mechanical resistance to make it rigid and self supporting
• Panel is protected against possible algae and decomposition caused by water and air
LIGHT CASSETTES
• Sturdy galvanised box design
• Light weight “honey-comb” dark out filters
• Filters are manufactured out of light weight black PVC
• Easy to maintain and clean