Pipe access security fan guard for 250 diameter pipe, Includes 1147 x 1162 x 3mm thk laser cut perforated plate, patterned with minimum 50% free area. Perforated plate mounted on public access side by a laser cut, folded and continuous welded clamp with bonded 10mm Neoprene lining, to suit 250 pipe and Nylok Nuts and Bolts. Powder Coated finish Black RAL 9011 or similar.