Treston tph series esd height adjustable workbenches with uprights and shelf treston tph915 3esd this workbench from treston is supplied with a pair of uprights and a shelf and covers the basic workstation needs for a wide range of professionalsfitted with a light grey semi conductive esd laminate worktop the bench can be adjusted in height from 650 to 900mm so can be used for various work processes while either sitting or standing according to preference the position of the laminated 25