Single and Twin unit belt drive centrifugal Cabinet fans are general purpose duct blowers. These versatile, quiet operating air movers provide economical, convenient and effective ventilation in ducted systems. They are also used extensively in heating and cooling systems. ZC units are sized with space saving in mind and furnished with inlet and outlet connecting flanges and side access panels as standard. Click here for more product information: https://www.pennbarry.com/Catalog%20Home/Commercial/Commercial%20Centri…