thread size for external oil filter return hose

Hi,

Excuse the title but could explain it better in the space provided. I have a remote mount filter on my '71 super,
the hoses to and from the filter are rubber and I would like to replace them with braided hose with AN fittings. My question is what size is the thread of the fitting that screws into the block on the return side ?

I do have a picture if somebody would be kind enough to help me post it to save any confusion.

Regards,
Conan

You can Youtube it to check but I think its 3/8 BSP. will go back and check what I bought. Matt Berry on here is a wealth of info and sells Phoenix fittings and braided hose. I just did mine and it looks the ducks nuts

3/8 NPT

Cheers Dave, That's what I was looking for 👍