The Single Controller only works with electronic pumps- like the 7200/2 ,7300/2, 74002 and 6000 or 6100. It is cheaper because most of the electronics are actually already on these pumps and it doesn't require a swicthed outlet as it connects to the 5pin DIN port on the driver. The foodtimer is for standard pumps of all brands and just switches off the pump for a few minutes for feeding. It has a socket that interrupts the power between the wall outlet and the pump and it has more components.