【High-quality material】 The air conditioner hose adapter is made of flexible PVC, which is durable. The hose connector extension is suitable for any exhaust hose with a diameter of about 130 mm. 【Air Conditioning Exhaust Hose Connectors】 Universal hose, suitable for all 5.9" diameter hoses, universal clockwise / counterclockwise threaded fittings for connecting threaded hoses. Can be easily installed on the back of a portable air conditioner. The exhaust hose interface is durable and economical for long-term use. 【Easy to Install】 The air conditioning exhaust hose adapter can be installed without any tools or tape, just twist it, easy to install and remove. Note: There are two sizes of 130mm for you to choose. In order to better connect your air conditioning hose, please pay attention to the product model you choose before purchasing. 【Practical Accessories】 Using the air conditioner exhaust hose window adapter to connect the hose, you can shorten the cooling time of the air