The 420314 swirl ring is compatible with XPR 170 and 300 torches.  This swirl ring works with 40, 130, or 170 amps on non-ferrous material.  Sold individually. 

Benefits of Genuine Hypertherm Consumables:
Made in the USA
Maximum consumable life for high capacity automated systems
Chambered Swirl Ring
Conical Flow
CoolFlow
LongLife
TrueFlow
Vented Shield HyLife
Tool free lead connection
Tool free nozzle
Inline valve process