• Outer frame constructed in a die-pressed single piece aluminium sheet.
• Removable core constructed from diffuser core ring having aluminum plaque with hemmed edges and aluminum pipes with spring loaded pins.

Sizes

Standard with 450 x 450mm neck sizes and 595 x 595mm out to out sizes with GI construction blank off with circular opening of 8 / 10 / 12 inches. Any other size as per customer requirement can also be offered