The Tera Pump TRM20 Manual Siphon Fuel Transfer Pump delivers an affordable fuel-transfer solution with intuitive design. Unlike ordinary fuel transfer pumps, the Tera Pump TRM20 Manual Siphon Fuel Transfer Pump works quick and easily emptying gas cans of many sizes. Its unique design eliminates the lifting of large, heavy gas cans and spilling wasted fuel. Its up-and-down-operated flexible spring-type bellows allow smooth transfer. The built-in clip keeps the discharge hose firmly attached to the receiving tank. This Tera Pump fuel transfer pump includes 3 different-sized adapters to fit most North American fuel cans.