3/8"x1/4" Brass Hex Reducing Nipple. It is Lead-Free compliant product which meets Public Law 111-380. Low lead Male pipe threadxMale pipe thread with hex shoulder. Manufactured to include no more than 0.25 % weighted average lead contect 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