Enjoy this Incredibowl Accessory by removing your replacement bowl and then attaching the long stemmed bubbler. Comes in Clear, light purple, blue and green. Specific Diameter to the large I420 Incredibowl Only. Bubbler holds water at the base. Fill with water through the center hole in the bowl. This fitting is specific to Large Incredible and is NOT the same Diameter of the bubbler for the mini incredibowl.