Stellarvue's Certified Pre-owned program is another benefit of ownership. Many of our customers upgrade to a larger telescope and trade in their lightly used Stellarvue telescope for one that is more advanced. We carefully clean, inspect, align and certify these preowned telescopes and offer them here with our full 2 year warranty. We guarantee they perform as new. Check back here often as these trade in's become available. They often sell within a day, sometimes within hours.