The remixed model fits snuggly and does not “swim” or have any uplift, in the sink or shower of the VW Grand California 680 Van. It also sits flush with the surface of the sink bottom. The original seemed a little to high, probably because VW decided to have a different supplier for the sink outlet for the T5/T6 series.
The model was printed with 30% grid infill (dt. Gitternetz) on a Prusa Mini+ in Sunlu PETG, disabling the top and bottom layers.
The author remixed this model.
Thanks @Wing-Art for this fantastic design. I scaled it to 115% on X and Y and down to 99% on Z to fit the Grand California 600/680 sink.