About Master Flow™ Round Duct Caps

Master Flow™ Duct Caps are used to terminate round pipe runs in HVAC systems. Constructed of sturdy galvanized steel. Duct caps install using sheet metal screws. Always seal seams with code approved mastic or sealant. Insulate ductwork for optimal system efficiency.

  Weight  Diameters

DC3

2 lb. (.91 kg)  3" (76 mm)
DC4 1.08 lb. (.50 kg)  4" (102 mm)
DC5 2.5 lb. (1.34 kg)  5" (127 mm)
DC6 2.5 lb. (1.34 kg)  6" (152 mm)
 8DC  3 lb. (1.36 kg)  8" (203 mm)

Features & Benefits

Product Documentation