VENTILATOR (PLAIN SLOT PATTERN)  Ref: PL4/PL5/PL6
	242 x 89mm - Openings = 9 Gross Open Area = 3861.27 Sq.mm 242 x 165mm - Openings = 16 Gross Open Area = 7974.08 Sq.mm 242 x 242mm - Openings = 24 Gross Open Area = 11961.12 Sq.mm