There are several different sizes of garbage disposals available on the market. Some of the most common sizes include:

1/3 horsepower 1/2 horsepower 3/4 horsepower 1 horsepower

These sizes refer to the motor's power output and can affect the disposal's grinding capacity and overall performance. It's important to choose the right size for your needs, taking into consideration the size of your household and how frequently you use the disposal.

Additionally, the size of the garbage disposals are also defined by their mount configuration:

• Continuous feed: This type of disposal is activated by a switch, and it runs as long as the switch is on.

• Batch feed: This type of disposal is activated by a stopper that is inserted into the drain, and it runs until the stopper is removed.

It's also worth noting that, some of the high-end models have multiple stages of grinding, which makes them more efficient and able to handle more difficult waste materials.