-4/6/8/10/12AN male To female with a 1/8" NPT Gauge Port Fitting Adapter .

Sealing: The AN thread of the flare is sealed at a 37-degree angle, and the NPT thread is sealed with a 60-degree taper. Fuel Pressure Take-off Fitting: The fuel pressure take-off fitting is an AN4 male to -3 female with a 1/8" NPT gauge/gage port.