The Tweco 42-23-15 liner comes with a 15 foot length and accommodates .023 diameter wire. Combatable With • Fusion 140, 180, 220, and 250 Guns • Weldskill 140A, 180A, and 220A Guns • Eliminator EL2550 Guns • Tweco No 1, 2, MS 250 Guns