Brand: AutomationDirect Item: Sensor mounting well Body Material: PTFE Insertion Length: 1.50in Process Connection: 3/4in male NPT Bore Diameter: 18mm Overall Length: 2.25in AutomationDirect sensor mounting well, PTFE body, 3/4in male NPT process connection, 18mm bore, 2.25in overall length, 1.50in insertion length.