A 15 hole black plastic carry tray from Thailand, for 100mm pots. Length 560mm; width 360mm; height 72mm. The hole diameter at the top is 92mm and at the bottom 80mm.
The following pots are able to be used in this tray.
Port Pot PP100, does not sit on the bottom of the tray -  otherwise good fit.
Port Pot PP100D, does not sit on the bottom of the tray - acceptable.
Dome Squat Pots JJ100DOME and JJ100CDOME – does not sit on the bottom of the tray, otherwise fits well.
Pot P 100 SS, sits down on the bottom of the tray - somewhat wobbly in the holder - acceptable.
Pot HP040 sits down on the bottom of the tray - somewhat wobbly in the holder - acceptable.
X010 does not sit down on the bottom of the tray, otherwise a good fit.
GCP100 Good fit.
There may be other pots that are able to be used in this tray.