I would recommend purchasing a "stronger" seal for the floor hole to be on the safe side. We purchased two toilets and one toilet developed a slight leak immediately and needed to be reset and also the flapper was faulty on the same toilet. Have to hold the flusher down for a second or two to flush.  I went online to request a new one under warranty be sent out as this is something we can replace.  The second toilet has no issues and both are very comfortable height, easy to clean and take up less space than our older American Standards.