[weird]

Hi ,

I am new to the forum and new to this motorhome. my problem is the water manifold is gone, i am left with about 6 lines with white plastic 90 degree screw on fitting and one broken line.
first question of help, what is the size of the smaller grey PEX water line used with all the above fittings on them.
what size are the white screw on connections used to the manifold.
what is the best brand or most used manifold replacement to use?
i am looking for fittings and sizes needed to be able to repair this.

what would be helpful i guess does anybody have a plumbing drawing of this unit.
thanks a lot for all info!

dave