This is an ECOLAB single head filtration system
Part number 9320-2266
I also have 2 filters available as well, see link below
https://www.ebay.com/itm/356676500653?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=JWiHJpFCT9K&sssrc=4429486&ssuid=JWiHJpFCT9K&var=&widget_ver=artemis&media=COPY