The Hobart SpoolRunner 100 Direct Plug-in Spool Gun (300796) is made special for the Hobart Handler 210 MVP and the Hobart 190 MIG Wire Welders. Designed to eliminate feeding problems associated with soft aluminum wire the Spool Runner 100 handles 18 gauge to 1/4 inch aluminum wire on the 210MVP and 16 gauge to 3/16 on the Handler 190. Highlights: • Easily accessible drive rolls • Screw-style drive roll tension adjustment • Spring-loaded tension-release arm for easy wire loading • Internal adjustment for spool hub tension • Clear spool cover: keeps wire clean allows easy visibility of wire supply. Comes Complete With: • Threaded nozzle • Enclosed wire spool compartment with internal spool hub tension adjustment for 4 in (102 mm) rolls of wire • Includes contact tips and feed rolls for .030-.035 in (0.8-0.9 mm) aluminum steel and stainless wires.