Metal Two Piece Nut and Nipple for CO2 (DISS 1080-A Outlet) Metal Two Piece Nut and Nipple for CO2 (DISS 1080-A Outlet) Works on Regulators: M1-940P, M1-320P, M1-320PG, and M1-940PG Part Number: SP-133 Product Price $36.00 Quantity: