Kitchen garbage disposers are designed to grind up leftovers and other food waste so that you can flush the debris safely down the sink drain. The sink that you are adding the disposer to should have a normal, full-size drain opening. To power the new disposer, you should ideally run a dedicated circuit from the breaker panel. If that is not possible, tie into another circuit that you have access to, but be sure to check that the load will be acceptable for that circuit.
Garbage disposer systems come with various options for you to choose from. For example, they may have different horsepower capabilities (1/4hp, 1/3hp, 1/2hp), reversing capability, and varying warranty terms. Pricing for a disposer unit can range from $50 to $400. Choosing the one that meets your needs is a great way to maintain clean and bright living area in the kitchen!