The Groen 108554 Jacketed Kettle Sight Glass Assembly helps operators monitor fluid levels or flow conditions within compatible jacketed kettle systems. This replacement assembly features a 1-1/4-inch NPT connection and is designed to provide a visible viewing point within the equipment. It works by allowing the operator to observe the process through the sight glass without opening o... https://partsfe.ca/sight-glass-assembly-for-groen-part-108554