Stratasys® T20B & T20 Extrusion Tip Set (Fortus 450mc, 900mc, F900) Stratasys Sale! 25800 /per Qty. Add to Cart SKU: 511-10850 Compatible 3D Printers Fortus Series (FDM Technology) Fortus 450mc Gen I Fortus 450mc Gen II Fortus 900mc Gen I Fortus 900mc Gen II Fortus F900