WINDOW ADAPTER: The Window Adapter Enables Users To Affix The Exhaust Hose To The Window Slider. This Offering Is For The Window Adapter Only. MODELS: This Window Adapter Is Compatible With The Following Model Numbers: RACPD1213CWRU, RAC-PD1213CWRU, RACPD1411CWU, RAC-PD1411CWU INSTALLATION INSTRUCTIONS: Installation Instructions Do NOT Accompany This Part - Your User Manual Contains Installation Instructions! WHAT YOU GET: This Offering Is For ONE Window Adapter That Is Specifically For The Above Models! If You Do NOT See Your Model Number Listed, Send A Message For Assistance In Purchasing The Correct Item! This part does NOT come with installation instructions. Installation Instructions Are Within Your Devices User Manual. This AC Window Adapter is used to affix the exhaust hose to the Window Slider. Please know that this offering is for the Window Adapter Only. This adapter is compatible with model numbers RACPD1213CWRU, RAC-PD1213CWRU, RACPD1411CWU, RAC-PD1411CWU If your Air Conditioner model number is NOT listed above, please send a message for assistance in locating the correct part!