155 — Duct Ring with Butterfly Damper for Model 150

Model 155 is a Duct Ring with integral Butterfly Damper for use with Model 150 Round Ceiling Diffuser.
Pre-drilled damper and diffuser mounting holes.
All-steel construction.
Brown finish standard.

How to Specify

Provide the following information:

Model number
Diameter
Finish

Submittal Data — 155 Duct Ring with Butterfly Damper for Model 150

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