GF (aphonic grid)
External air intake or exhaust grille with aphonic protection.
Execution
Zinc-plated steel (GFZ series) or aluminium (GFA series).
Sound-absorbing element made of mineral wool protected by micro-stretched sheet metal.
Versions
- GF.../200 series or GF... / 300: simple version
- Series GF... / 400 or GF.../600: double version
- GF... / 2F series: simple with 30 mm flange
External air intake or exhaust grille with aphonic protection.
Execution
Zinc-plated steel (GFZ series) or aluminium (GFA series).
Sound-absorbing element made of mineral wool protected by micro-stretched sheet metal.
Versions
- GF.../200 series or GF... / 300: simple version
- Series GF... / 400 or GF.../600: double version
- GF... / 2F series: simple with 30 mm flange