Ugelli E3D Prusa High Flow ObXidian Prusa MK3.9 MK3.9S, MK4, MK4S, XL, Core One
(2) ObXidian™ coated nozzles are exceptionally wear resistant. E3D is actively developing even more specialist solutions for these materials. E3D Prusa Nozzle: High Flow ObXidian™. Abrasion Resistance.