This part affixes your exhaust hose to the back of your AC unit! This adaptor fits on 6 inch exhaust hose! This part does NOT come with installation instructions. This original Midea Air Conditioner AC White Appliance Adapter originally shipped with the following Midea devices: MPPFB14H, MPPFB14HRN1BH9, PPA1210M This is a true Midea part! This item is NEW! Don't see your model number? Send us a message as we are happy to help!