This adapter is a component that converts a round pipe diameter of 150mm (φ150) to a rectangular dimension of 220x90mm, and then back to a round diameter of 150mm (φ150) at a 90° angle. It is used in ventilation, air conditioning, or duct systems to connect different types of pipes or ducts.

• Material: Usually made of plastic.
• Durability: Resistant and suitable for installation in air conditioning or ventilation systems with heavy use.
• Compatibility: The dimensions of the adaptor must exactly match the dimensions of the pipes or ducts being connected.
• Round diameter: 150mm (φ150)
• Rectangular dimension: 220x90mm
• Angle: 90°