The Window Kit Plate is adjustable, offering a stretchable range This Portable Window Kit Plate and Adaptor offer the perfect solution to exhaust warm air from your air conditioner. Built to enable connections to the exhaust hose and window kit plate, they are perfect for all with an air outlet of 15cm / 13cm in diameter. Featured with , durability and easy installation, you only need the included screws to secure the two plates together. No extra preparation is required.