For drums of 50-60 kg OR 110-154 lbs with external diameter of 370 - 420 mm or 14.5 - 16.5 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.