Exhaust hose is NOT included. This sliding door air conditioner kit is designed for portable air conditioner vent hose with a External Diameter of 5.1 inches or 5.9 inches. Patent No.D1004137. Max Adjustable Length: 90”. Universal adapter for 5.1" or 5.9" ac hose. Universal sliding door or window ac vent kit. Easy to install. Just slot the panels together and slide them to the length needed, then lock the nut. Package include: 6 x panels, 6 x lock-nut, 1 x universal adapter. Seamless Design. Exclusive bottom panel joint design. This portable ac window vent kit 100% keeps the air out. Sturdy and Thicker PVC sliding door window seal kit fits sliding window or door. Keeps your room cool for longer and save electricity charges. Easy to remove.