RECTANGULAR EXPANSION JOINTS
Rectangular Expansion Joints are used in case the duct cross-sections are rectangular instead of Circular. The ondulations are higher with a larger width.
  
The types of Rectangular Expansion Joints are named according to the corner design as ,
1. Rounded Corner
2. Single Miter Corner
3. Camera Corner

  
1. Rounded Corner
  
  
2. Single Miter Corner

  
3. Camera Corner