The purefil master spool PETG-R is made from recycled 3D printing waste and production rejects from our filament production. Thanks to the high-quality material, the spool has practically no warping and is therefore very suitable for all material stations such as Bambu Lab AMS, Anycubic ACE Pro, Creality CFS, Phrozen Chroma, etc. The spool has a thread on both sides and can be easily unscrewed and filled with new filament. The purefil master spool is compatible with the purefil refill filaments. Thanks to the high-quality material selection, the spool is very durable and can be used several times. The master spool makes an important contribution to sustainability in 3D printing and is very user-friendly. For use in material stations with a driven spool, we recommend using our locking pin, which prevents the spool from unscrewing during printing. Since the spool is made of recycled material and no additional dyes are added, the spool color may vary.