Fitting, Adapter, 3/8 Npt Male, Aluminum, Red, For Mech. Temp. Gauge

AutoMeter Fitting, Adapter, 3/8 Npt Male, Aluminum, Red, For Mech. Temp. Gauge

5/8-18 UNF Female (adapts directly to sealing nut on AutoMeter Mechanical Temp Gauges) to 3/8 NPT Male