The LG COV33315101 AC Cover-Outsourcing is used to attach the exhaust hose to air conditioner and designed to provide a tight seal to the hose and improve the cooling efficiency and its working is based on the tight connection of the hose to the unit and directing the warm air outside while maintaining the proper airflow for the temperature regulation and does not require frequent ad... https://www.hnkparts.com/cov33315101-lge-cover-outsourcing