Borosilicate Sight Glass Round High Temperature Resistant Glass Boiler Sight Glass Pipeline Flange Valve Observation Lens 50-250mm

Built with Borosilicate glass, this high temperature resistant sight glass is perfect for monitoring and observing pipelines, boilers, and valves. With sizes ranging from 50-250mm, it provides a clear line of sight for accurate inspection. Make informed decisions with this durable and reliable sight glass.