Identify a washing machine part - the exit port
Appliance parts like are generally specific to the manufacturer and possibly model. My usual approach, which has served me well, is:


Find the manufacturer's service website.
Do a parts search there, based on the model # and part description. Ideally, check the existing part for a label.
If that doesn't work, look for a parts diagram of your model. Often these include part IDs expressly for the purpose of ordering replacements.
Based on the part number identified in step 2 or 3, search on google and ebay for the part. Usually you can find it from a third-party retailer for significantly less than ordering direct from the manufacturer.


You might also try a local appliance repair parts store -- they may be able to guide you to find the right part if they are familiar with your brand of appliance.