This Perfect Aire Portable AC replacement window exhaust vent kit includes a 5.92 in diameter hose, universal hose ring, adapter, and window sealing boards. This kit is ideal for single-hung, double-hung, or casement sliding windows, and is compatible with both clockwise and counterclockwise hoses to connect to the coupler on the back of the portable air conditioner. The original adapter created to connect the Portable AC unit to the hose is not included and will be required in order to complete setup. This kit is compatible with most portable air conditioner models.