ATCO's 500 Series is a UL 181 Class 1 Air
Connector which meets the requirements of
NFPA (90A & 90B). 500 Series is
manufactured with a tough double ply duct wall
construction. 25' lengths, which can easily be cut
to desired length, are compressed and packed
in small, easy to store cartons.
The 500 series is air-tight and is designed
for low to medium operating pressures in
HVAC systems.
Series 500 is used as a supply, return and exhaust duct in low-to-medium pressure heating, air conditioning and exhaust systems. ATCO's series 500 can be used in an air distribution system, connection ducts, mixing boxes, diffusers, light troffers, room inlets or other terminal devices where an uninsulated flexible air connector is required.