Sight Glass Circle, 2-3/4" OD x 1/4" thick - Clear-Borosilicate Glass - 400F - Westwood Ambient temperature: -40 150 °F

Ambient temperature: -40 150 °F (175 °F for short period of time)

Large Radius Capability: The TR42 can expand to a radius of up to 42 inches (107 cm)

Westwood 4M6

Deodorizes after spills and leaks

Sight Glass Circle, 2-3/4" OD x 1/4" thick - Clear-Borosilicate Glass - 400F - Westwood Ambient temperature: -40 150 °FThe S325 275 by Westwood is a round sight glass designed for high temperature industrial applications. Here's a detailed overview: Product Specifications Model: S325 275 Manufacturer: Westwood (a division of Beckett) Type: Sight Glass Circle Outer Diameter (OD): 2 3 4 inches Thickness: 1 4 inch Material: Clear Borosilicate Glass Temperature Rating: Up to 400F (204C) Application: Commonly used in oil burners, boilers, and other high temperature systems