Fire protection products sight glass are cast from high quality brass alloy. This assures lasting performance and serviceability. Available in both full flow and restricted orifice design. Flow can be viewed through two high impact Lexan (polycarbonate) windows on either side of the sight glass. All models feature male by female thread patterns for easy in line installation. The full flow design is suitable for system flow verification. The restricted orifice types can be used to simulate system sprinkler head flow which can be viewed through either window. Not designed to be used under pressure.

• FPPI sight glasses feature brass construction with Lexan view windows for observation of flow

Applications: For use with sprinkler systems inspectors test trims

• Specification Sheet https://www.plumbers-supply-co.com//ASSETS/DOCUMENTS/ITEMS/EN/UNI-PS1297_Spec.pdf