For drums of 18-30 kg OR 39 - 70 lbs with external diameter of 260 - 320 mm or 10.2 - 12.6 inches.
The drum covers are available in various sizes for drums from 5 to 220 kg or 11 - 485 lbs and are supplied complete with handwheels to lock them to the drum. They keep the pump upright for proper operation.