Our materials page lists all the certified materials for our 3D printers. Next to each material listed is a blue icon that, when clicked, will take you to the manufacturer’s website. In most cases, the manufacturer sells their filament directly from their website. In many cases, the manufacturers’ filament is also sold by other companies. We have found that Amazon.com or Google Shopping are great places to find multiple sellers of the certified filaments, ensuring price competition and product availability.