There is a difference in quality...our pine pellet bedding is denser, with more fiber packed in to each pellet. You get more absorbency per pellet. Since the pellets are so dense, they also take up less storage space. Made from safe clean KILN DRIED pine, with no additives or irritants. Free of the toxins associated with wood stove pellets. No worries about phenols. Recyclable and compostable.