Regulator Inlet Nipples Air 1/4 in (NPT) 2 1/2 Stainless Steel CGA-346 Western Enterprises Regulator Inlet Nipples WARNING: This product can expose you to Lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Wt.: 0.17 lb Gas Type: Air Length [Nom]: 2 1/2 in Thread Size [Nom]: 1/4 in (NPT) CGA No.: CGA-346 Material: Stainless Steel