Perforated plate diffusers are ideal in areas where resistance to tampering is desirable.
- Secure type grille for supply or return air applications, designed to fit any ceiling suspension.
- Perforated plate diffusers are ideal in areas where resistance to tampering is desirable, such as schools (the holes are too small to push fingers through guarding against injury and damage).
- 3.17mm holes @ 4.78mm centres 1mm galvanised perforated plate, 40% free area
- 25 x 3mm flat bars fixed to the inside neck with stainless steel rivets @ 100mm centres for additional strength and security.
- 25 x 6mm centre flat bar welded to rear of grille on sizes 450 x 450 (mm) and larger.
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