This SAF-AIR F75 is used on wing tanks or any application where a 3/4”-16 flush mounted fuel drain valve is needed. This aluminium valve is simple and clean to operate, using any standard sampling tube. Just push up on the centre of the valve to sample fuel. Our new design allows all the fuel to enter the tube without leakage. This valve is designed for use on Cessna 310 through 441 model airplanes.