The front duct connector is used to connect the Mark 2 intake vent and the intake duct. With this device and the intake duct, you can improve the cooling efficiency of your space.
Outer diameter: 11.7 cm
Inner diameter: 11.1 cm
Generally, you do not need to purchase additional pipes as the Mark 2 air conditioner comes with three tubes. When using this accessory, typically, only one tube needs to be connected to the rear of the air conditioner, or no pipe connection is required.
According to the interface of the front air inlet, Mark 2 is divided into two versions, V1 and V2 (V1 has fewer users, and the majority are V2). The Front Air Inlet Duct adapter for Mark 2 can be directly compatible with the V2 version without any trimming required. However, if you want to adapt it to the V1 version, you will need to trim the interface yourself. Following the diagram, use scissors/pliers or similar tools to cut the interface along the direction of the yellow arrow.
When it is not cut, the length of the plastic part measured from the yellow arrow is as shown in the figure , which is about 8mm.
The cutting length is about 5mm as shown in the figure.