Flatline: standard fill nipple?

[Newt]

Hey All,

Quick question: Does the flatline regulator have a special fill nipple, or is it going to be interchangeable with more low profile versions available now?

[Spider-TW]

The ninja fill nipple is still 1/8" npt (as is the flatline). The ninja check valve piece is actually a little larger than the flatline (3k), but there should still be room for it (just make sure it still rattles when you install it). The holes are the same and the fitting ratings should be the same. I don't see any problem with it.