WeldingCity Teflon Liner 35T-40-15 (.030"-.035") 15-ft for Tweco Mini/#1 and Lincoln Magnum 100L MIG Welding Gun Premium quality Teflon liner 15-ft 35T-40-15 (0.030"-0.035") for Lincoln Tweco MIG welding guns. For soft metal wire MIG welding such as Aluminum etc. Fits Lincoln Magnum 100L & Tweco Mini/#1 MIG welding gun or equivalents. Please see all listed pictures for parts details and spec. and check your MIG gun details for part compatibility. Strong technical support with experienced customer service to address buyer's any question.