Supplied complete with spring-loaded mounting system, these tanks are made to mount on trucks and trailer tops. Fitted with 50mm fill/dip tube. 50mm pump mount tubes with 50mm BSP socket for electric and hand pumps. 25mm drain plug. 40mm bottom outlet socket. Vent with shutoff valve for spill-free travel when full. Black anodised calibrated dipstick. Product signs Lift rings (for empty lift only)