Both of those have in-built jet. For the ones who want to fit into existing toilet. Below one would work. https://images-na.ssl-images-amazon.com/images/I/31Mj

Both of those have in-built jet. For the ones who want to fit into existing toilet. Below one would work. https://images-na.ssl-images-amazon.com/images/I/31MjIwM1JQL.jpg https://images-na.ssl-images-amazon.com/images/I/31MjIwM1JQL...