I have just uncovered some more of these. I am not sure of the sizes so I am going by what is on the box. 1 - Pack of 5 Pipe Fitting as per the photos. It says on the box  3/16" Olive x 1/8 BSP x 3/16 O/D Pipe Union Nut & 1/8 BSP Mounting Body. Please have a look at my photos as this will give you the best idea of what I am selling.  If you need any more information, please ask.  I will combine any postage costs with other purchases.