I've had a few problems trying locate an Ice-box or good Esky that will fit on the cooler carrier on the front of my trailer. I want something around the 30L mark, that is both light and efficient in terms of retaining ice for a few days. The tray itself is 600mm x 370mm, and the edge of the tray is slightly raised with 20mm square aluminium tubing around the outside. Tie-down points are in the middle of the 370mm sides.
Seems most Ice boxes start at around 40L, with a few exceptions around 20L that are too small and are obviously meant to be hand carried. About the only 35L I can find that will fit is an Evacool IceCool box; all other 35L boxes I find are too wide.
Alternatively, I could get the Icebox I want and make another tray to fit