C.K Worldwide 57Y04 TIG Consumable, Back Cap With O-Ring, Style: Short, Black, For Type/Brand/Model: Series-3 CK150, CKC150, CK210,CK300, CK510, TL210, TL300, TL18, TL26, FL3L, CK17, CK18, CK26, CKM350, CWHTL300, CWH350, CWM350 Standard Gas Saver Tig Torches