3/8"x1/4" Brass Bell Reducing Coupling. It is a lead-free compliant product that meets Public Law 111-380. This F.I.P. (Female iron pipe)xF.I.P. (Female iron pipe) thread yellow brass pipe reducing coupling is machined from extruded brass rod and manufactured to include no more than 0.25% weighted average lead content on wetted surfaces.
WARNING: This product can expose you to lead, a chemical known to the State of California to cause cancer and reproductive harm. www.P65Warnings.ca.gov