5/16" Hose I.D.x3/8" Female Pipe Thread Brass Barb Insert. This lead-free compliant product meets Public Law 111-380 and is suitable for hose clamp or crimp type ferrule. It has an operating temperature of 32 to 200 degree F. Barbed edges provide a positive connection and excellent vibration resistance. Barb size is hose ID.
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