Stainless-steel blasting stem. Accepts one 3/8-24 orifice assembly and Gatti P/N 3281 stainless wear cap. Connects to a spray bar or manifold using a standard 9/16-18 button seal connection.

9/16-18 UNF button seal connection, 3/8-24 UNF orifice assembly, 5/8-18 UNF wear cap connection