Fiat's bubbler systems are a gentle alternative to a vigorous whirlpool. Instead of water circulating through a whirlpool system, a bubbler sends air up from the floor of the tub for a therapeutic warm air massage. The systems are designed with hygiene in mind, with an Automatic Purge Cycle that blows hot air throughout the pipes to ensure it is completely clean and dry after each use as well as at a selected time daily (user set).

A more robust version is also available on the MCS-338 for a relaxing foot massage.