| MILLER ELECTRIC 164421 Adapter,Contact Tube,PK2 Contact Tip Adapter, Compatible with Brand Miller, Series FasTip, Gas Diffuser Number 164421, Compatible with Series XR, XR-M, Welding Processes MIG Welding (GMAW), Connection Thread Type Slip-On, For Use With Spool Guns, Material Copper, Package... ... more MILLER ELECTRIC 164421 Adapter,Contact Tube,PK2 Contact Tip Adapter, Compatible with Brand Miller, Series FasTip, Gas Diffuser Number 164421, Compatible with Series XR, XR-M, Welding Processes MIG Welding (GMAW), Connection Thread Type Slip-On, For Use With Spool Guns, Material Copper, Package... | | $122.99 go to store |