Pencil Gun Assembly Product Type Pencil Gun Assembly Feed Type Siphon Air Flow - Maximum 6 cfm Nozzle Inner Dia 1/8 in Nozzle Material Tungsten Carbide Hose Connector Size 3/8 in Hose Connector Type NPT Hose Length 5 ft Air Pressure - Minimum 40 psi Air Pressure - Maximum 100 psi