You can find a used refrigerator for sale on Craigslist by entering the search term "used refrigerator" into the search box found at the top left-hand side of your city's Craigslist homepage, as of 2015. Be sure that the page is set to your location.
Once you arrive at the default Craigslist homepage, you need to choose your country from the link list at the top. From there, choose your state and city from an alphabetically ordered list. This takes you to that city's Craigslist homepage. From there, you can choose a category or enter your specific search term in the search box and hit enter. You can now navigate through all relevant listings.
You can customize your search even further by using the menu on the left-hand side of the web page. Update price requirements, make and model, model year, and more. Choose to see all relevant listings or hide certain listings, depending on the requirements you input here. You may also toggle the listing display order using the buttons on the top right-hand side of the list. Choose from: newest, relevant, lowest price - highest price, or highest price - lowest price.
Once you find the used refrigerator you are looking for, you can contact the seller using the information provided in their listing.