if the fitting is to go into a prop valve, you want the inverted flare
if the fitting is to go into an -AN fitting, you want the 37* flare (the first fitting to the left)
the bubble flare protrudes out like so (pictured on the right)
if the fitting is to go into an -AN fitting, you want the 37* flare (the first fitting to the left)
the bubble flare protrudes out like so (pictured on the right)
