Part Number: #66607
Manufacturer: Elkay Manufacturing
Mfg Number: 55001109
This stainless steel basin is for Elkay units EZS8L and EZS8S. The basin helps collect the unused water from the bubbler and help direct it to the drain while reducing splash. Model number 55001109.
See this Elkay Stainless Steel Fountain Basin on a water cooler in our EZS8L Parts Breakdown Photographic Chart. (It is the 12th part listed in the breakdown.)