Donut-filler machines can be purchased online on the websites of eBay, Alibaba and Edhard. Each retailer offers various machine models from appliance makers at a range of prices.
EBay lists a number of donut-filler machines that are up for auction. Many items allow a customer to place a bid, while others can be purchased outright at a previously set price.
Alibaba lists donut-filler machines from global locations. A customer can click on a product to view a description of the machine and information regarding the seller.
As of March 2015, Edhard sells four series of filler units. A customer can click on a product to see a full description.