many guys use the electrical drain pump off of a GE clothes washer......
mainly because of the volume and height that these can pump water compared to most others....
several applications have been for a laundry tub drain, where it would have to pump at a higher location, as well as move large amounts of water quickly....
if I am correct, they have a 1-1/2 inch inlet and a 1 inch outlet....probably what makes it so easy to attach to a drain port, and a regular drain hose...