Flexible Design: Widely used by 98% of air conditioners on the market, suitable for all 5.3...diameter portable air conditioners. Innovative Style: Replaceable PVC clip rails, suitable for vertical and horizontal directions of different sliding windows. Quality Assured: Made of lightweight and durable PVC, easy to install and remove, saving space when not in use. Energy Efficiency and Reliability: The windows of the portable air conditioning system are sealed with exhaust ducts to prevent hot air from entering and improve the efficiency of the unit. Specifications. Name: Air Conditioning Exhaust Pipe Fittings Material: PVC Packing: Polypropylene Bag Application Scenario: General Air Conditioning Accessories Installation: 1. Connect the exhaust pipe and deflector gasket 2. Insert the prepared screws into the holes of the rigid frame. 3. Adjust the deflector to the desired length 4. Attach the deflector to the window, install the deflector, then connect the deflector gasket and the exhaust pipe to the deflector.