Rectangular ductwork is used in the main supply of heating and cooling systems and return ducts in addition to venting bath fans and range hoods.  Hercules offers premium duct work that varies in size and diameter.  The shape is rectangular with an overall length of 60 inches made of galvanized steel.  


SKU Description Prod Info Price/Units Quantity
1414D4 13 3/4" SQ DUCT 4' LTHS PCS. Product_Details FT
1420D8 14 1/2 X 20 DUCT 8' LTHS PCS Product_Details FT
1616D4 15 3/4" SQ DUCT 4' LTHS PCS Product_Details FT
1620D4 16.5 X 20 DUCT 4' LTHS PCS Product_Details FT
1818D4 17 3/4" SQ DUCT 4' LTHS PCS Product_Details FT
2020D4 19 3/4" SQ DUCT 4' LTHS PCS Product_Details FT
2420D4 24" x 20" 4' DUCT Product_Details FT