Rubbermaid Wholesale Brute® Giant Roll Out Container 65 gallon-Grey
From the Rubbermaid website. I think you would find it difficult to find in a store however.
Why do you want one with wheels? Once it's full of water I wouldn't want to move it, one snagged wheel and it's slosh time!!
My tanks: 120 Reef w/L2 Algae Scrubber, 60 Reef Pond w/floating Algae Scrubber, 40 Breeder Reef w/L2 UAS Tester Algae Scrubber
I maintain: 144 SW Reef w/L2 Algae Scrubber | 200 SW Reef w/L4 Algae Scrubber
Special knowledge: Algae Scrubbers, Acrylic Fabrication