Portable and durable This portable air conditioner casement exhaust duct pipe hose interface connector is designed for easy installation and longlasting durability. Efficient connection It is specifically designed to connect the exhaust hose and casement kit plate, ensuring a secure and tight connection. Multiple options This connector comes in different types. Type 1 connector is suitable for 5 mobile air conditioner bodies and exhaust pipes. Type 3 connector is designed for 1 mobile air conditioning bodies and exhaust pipes with a square size of 15*11.6CM. Type 5 connector is for embedding in the wall after opening, with a cover. Use scenarios Window venting: connect a portable air conditioner through a casement kit using the Type 3 connector with the 15*11.6CM opening for a secure vent. Flexible multiunit setups: use the Type 1 connector where multiple portable air conditioner bodies and exhaust pipes are involved. Permanent wall installation: choose the Type 5 connector to embed in the wall after opening, with a cover for a neat finish.