May I know more details about Scooba?

Do you sell it separately or it can be purchased independently? Cuz my mother once called an iRobot agent, he said in order to buy a scooba, you must have a Roomba, but we've already got another type of automatic vacuum player, no plan on getting a new one.

Kindly please pm me the details as well as the price of a Scooba. Thanks.