The TSUB may also be used for other similar applications including portable benches and small individual machines.The TSUB has exceptionally low noise characteristics for use within the classroom and is designed for use with fi ne dusts. Warm air is returned to the classroom being sympathetic to environmental issues. A complete installation service is available by Technology Supplies engineers. Inlet sizes: 1 x 80mm & 1 x 63mm diameter ports, one either sideOR 2 x 63mm diameter ports, one either side.Please specify inlet port diameters and locations (LHS/RHS) at time of order placement.These products require specialist installation & training. Please contact us for further information.