Durable hardened Steel nozzles for your Volcano HotEnd. 3D printing with abrasives such as carbon fiber, glow-in-the-dark PLA or even filled filaments such as Woodfill all take their toll on brass nozzles. E3D's Hardened Steel nozzles will resist wear and last a lifetime. Requires a HotEnd modified with a Volcano. Compatible with the Lulzbot Moarstruder.