They can be used for either exhaust or supply air applications. The perforated plate is galvanised steel at 50% free area. The perforated grille is available in 3 or 4 way air distribution patterns as an option. There is also a removable core perforated grille, with a lockable core. These are designed for areas that require a level of security and non-accessibility to the roof space. Standard finish is powder coated RAL9016. Other colours are available upon request.

PG
Perforated grille, fixed core.

PGLRC
Perforated grille, removable core – lockable.

PGRC
Perforated grille, removable core.