American Lubrication Equipment TIM-74, Hand Operated Heavy Cast Iron Rotary Pump, 3/4" NPT Male Threads on Discharge Spout. Hand-Operated Drum Pumps. Heavy cast iron rotary pump for transfer of petroleum-based products and antifreeze. Telescoping tube assembly enables pump to fit 5 to 55 gallon drums with 2" bung opening. Standard 3/4" NPT (M) threads on discharge spout. Container Size: 16-55 gallon drums. Products Handled: Antifreeze & oils. Downtube Type: Adjustable bung adapter. Body Material: Cast Iron. Pump Type: Rotary. Discharge: Spout w/ 3/4" (M). Delivery: 1 gallon per 12 revolutions.