What type of threads for the fuel rail??

[Koenigturbo]

I'm installing an Areomotive regulator. I need to know what type of threads that are on the fuel rail so, I know what kind of adaptor I need for this install. Aren't they pipe threads? Also, what size hose do I need?? 3/8 i.d.?
Thank you!!!

 

[92nsx]

Check out what I have attached