Bosch Hvac 7098575 Sight Glass

The Bosch HVAC 7098575 Sight Glass is a viewing component used in hydronic to visually monitor internal fluid conditions within boilers or related circulation equipment in HVAC systems. It is typically installed in hydronic heating or steam systems where it provides a clear window for checking water level or flow condition without opening the system. Positioned on the boiler or piping assembly, it supports routine inspection of system status during operation and maintenance. it is commonly used in service and replacement applications to ensure safe monitoring of fluid conditions helping technicians verify proper operation, and detect irregularities such as low water level or flow issues