Ducted Central Vacuum Cleaner Fitting Short 90 Elbow

  Ducted Central Vacuum Fittings Short 90 Elbow The short 90 degree elbow has been designed to fit inside a stud wall. It is only to be used for this application where a normal sweep 90 can not be used for room restrictions. To be used only where the actual inlet will be installed.  This fitting should never be used any other place.  Or else, it can cause clogs.