1、Lightweight and Robust: This flux core no gas nozzle kit is made of premium PTFE material, which is more heat resistant and robust than previous materials. The lightweight design makes it perfect for your welding projects. 2、Complete Package: Includes 4 upgraded flux core no gas nozzles and 1 brass gas diffuser, providing everything you need for your welding tasks. 3、Check Compatibility: Verify product sizes and recommended compatible models to ensure the right fit for your welding gun. Be sure to choose the correct nozzle for your specific welding gun for optimal performance. 4、Convenient Replacement kit: This nozzle kit is designed for easy replacement of parts, offering great convenience during welding. Defends thread and opening of tip holders during welding process. 5、Wide Compatibility: Compatible with for Century FC90, 80GL, for Easy Weld, for Ti Easy Flux, for Craftsman, and for Chicago Electric models.