Open Tower Rack System allows for maximum air flow to rack mount equipment. Available in 1U - 43U sizes and a depth of 510mm/20" or 406mm/16" Deep. The rack system comes in individual flat pack items to be assembled on site. Each rack system includes front and rear rack rail, side supports, bottom and top units and adjustable height feet. Fixing screws are also included with the rack system. Heavy duty castors are available as an optional extra.