Pat, That's a commercial 1/2 tote from Bomar Plastics.
You can order them from Englund Marine.
They are very heavy duty and mine has kept ice for 5 days in 100 degree heat. I like the one with the feet for the forklift. It is the perfect working height for gutting and gilling the days catch before iceing them down.
I have an Angler so I have plenty of room in the cockpit for it. I also take an insulated kill bag and either an 80 or 150 quart cooler when Tuna fishing. I can pack up to #650 of ice but usually only take #500.
When you run out of ice Tuna fishing you are done. I take VERY good care of my catch. You would be very hard pressed to find better cared for fish anywhere. They are imediately bled out, then gutted and gilled to remove as much heat as possible, then I pack them with ice and in ice.
My fish is Sashimi grade.