This Tweco 1420-1113 Fabricator 42-3035-15 MIG Conduit Liner is 15 feet long. It has a zinc-plated spring wire to minimize corrosion on the metal surface. Each conduit liner wire has a crimped wire guide that is universal common to all brands of MIG guns. Attached to the wire guide is an adapter; use different adapter for different MIG gun brands. This liner comes already attached with Tweco adapter. Use with 0.030″ – 0.035″ (0.8mm – 0.9mm) MIG wire. Ready to use right out of the box. Specifications: Processes: GMAW Wire Conduit Material: Zinc Plated MB Spring Wire Spring Wire Diameter: 0.041″ (1.04mm) Welding Wire Diameter: 0.030″ – 0.035″ (0.8mm – 0.9mm) Overall Length: 15 feet (5m) Amperage Capacity: Up to 250A.