UNIVERSAL COMPATIBILITY: exhaust hose fits to various portable air conditioner models as long as you are using same hose its connector has 5 inch/ 13 cm (outer edge to outer edge) in diameter and its thread is counterclockwise STRETCH AND SHRINK FREELY: the hose is extendable, the shortened length is 12.6 inch/ 32 cm, it can extend up to 59 inch/ 150 cm, easily extend the length of the exhaust hose to fit into anywhere you want DURABLE AND STURDY: hose is constructed from polypropylene with good flexible, durable and portable, this is a good replacement to keep your air conditioner from leaking when the essential vent hose has cracked EASY TO INSTALL: gently extend out the exhaust hose to meet up with the existing hose, line up with the both ends, clockwise rotate until it snaps into place, its easy to install Note: please make sure this is the correct hose both the size and thread for your portable air conditioner before purchasing; If you have any problems about your purchase, please dont hesitate to contact us and well make it right