I just bought one of these little pumps from Harbor Freight not thinking it would be worth much more than adding gas to the lawnmower, I was wrong this pump is great for filling my Cub. I can sit a 5 gallon jug on top of the short stepladder stick it in the jug put the hose in the tank and hit the switch and it will transfer 5 gallons of 100LL in less than 5 mins. No power cord it runs on 2 D cell batteries and really gets the job done and at 9 bucks when it dies I can toss it and get another but so far it is rock solid.