It is a
Blue Sea block from West Marine the 6 fuse is $35.99 and the 12 fuse $39.49. They are really nice units.
My installation of the Fuse block is written up in my mod thread (link in my signature). My current set up is only temporary, but it is beginning to serve it's purpose. It will later be moved to the rear tool box, along with a second battery. It will support the full time power requirement units, such as the radios, Engel, lights, ect...
For the time being I mounted it to the rear wall using an old 4 ga. amplifier kit I had laying around. The pro to this is that it has an in line fuse on the positive cable, that will help prevent an fires, or melt downs.
In the last picture you can see my *temporary* Engel hook-up. I twisted the wires to prevent electrical interference with the CB.