Genuine E3D Zodiac MK8 Nozzles A premium nozzle choice, both CRB and Pro Zodiac nozzles are manufactured from hardened tool steel with a special bi-layer coating. Designed for use with Creality's MK8 Hotends, check our compatibility list here. Choose the right material for your prints: CRB CRB nozzles are designed with great wear resistance and reduced filament build-up on the nozzle. This means they can withstand extended use without showing significant signs of wear, and they are less prone to filament sticking or accumulating on the nozzle surface. CRB nozzles are rated to handle temperatures up to 300°C, making them suitable for a wide range of materials commonly used in 3D printing. Pro Pro nozzles, as the name suggests, offer even higher wear resistance compared to CRB nozzles and are designed to withstand temperatures of up to 450°C, allowing for the printing of high-temperature materials that require elevated extrusion temperatures.