Swirl Ring, For Plasma Cutter Series HT-400, HT-4001, PAC 500, PAC 600, Compatible with Brand Hypertherm, Welding Processes Plasma Cutting, Compatible with Grainger Part Number 41R424, 41R425, 41R426, 41R433, 41R435, Compatible with Manufacturer Part Number 020035, 020036, 020037, 020047, 020050