Fuel leak, need help identifying replacement part

My 2.25 90 has a fuel leak which I identified yesterday. It's dripping noticeably when car is running but stops when standstill. I have identified that the copper? Piping which connects to the bottom of the fuel pump has a tiny hole in it. I've tried looking everywhere but cannot find anything that even looks like it. I think it's called the fuel inlet pipe but not sure. I will try to upload a picture so it's more clear.
I would appreciate some direction on where to get replacement or if someone has had similar problem. It failed its mot based on this so need to get it fixed, ur comments are appreciated

I've attached the pics.

Its the pipe thats visibly leaking towards the bottom which goes into the fuel filter

if its pipe from tank to pump ,pipe is nrc8919,pump is prc3901,filter element is js660l,pipe pump to filter is nrc7930,unions for pump 572535

wow...Thanks very much for your prompt reply.