New York Blower Company Round Outlet Silencer for Industrial Blower Fan.

Unit was bought new in 2016 and not used. 

Serial  # 2017-13960-01.

The inside rectangular flange dims are 27" X 18 1/4".

Outside flange to outside flange dims are 30 1/4" X 21 1/2"

Round outlet is 26 3/4" in diameter. 

Shipping dims are:

43" Long

64" Wide

45" High

450 lbs