There are a few Traeger models that are sold at Costco. The most popular model is the Pro Series 22. This model is a great option for those who want to smoke meat or grill on a regular basis. It has enough space to cook for large groups and comes with all of the necessary features, such as digital temperature control and an automatic shut-off feature. Other Traeger models that are sold at Costco include the Lil' Tex Elite 22 and the Select Elite 34.