Features: 1. The hose connector is made of high-quality materials, providing strength and tightness. The connector is flat and smooth, not easy to break, safe and durable, and will not scratch the surface of the installation object. 2. Professional accessory: a connector used to connect the window sealing plate and the air-conditioning exhaust hose with a diameter of 13cm/15cm. 3. Advantages: Good air conditioning hose sealing can help reduce energy consumption, and a well-structured exhaust ventilation system can save electricity under an efficient cooling system. 4. There are a variety of specifications to choose from; you can purchase the corresponding air conditioner hose adapter based on your needs. 5. Convenient installation: There is a serrated bar in the connection port between the connector and the hose, which can perfectly fit the hose without scratching it. Simply insert the hose into the connector slowly and it is ready to use. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effects. 2. Please allow 1-3cm deviation due to manual measurement. Material: Reusable plastic Size: 13cm/15cm (Optional) Includes: 1 x Air Conditioner Exhaust Hose Adapter