Amerex Heavy Duty Dolly is constructed of heavy duty steel and is compatible with the following amerex fire extinguishers:240, 252, B262, 423, 331, 332, 581, 582, 580, 584, 564, 566, 567, 568, 569, 589, 591, 760, 761, 762, B570, B571SPECS:SKU: Amerex...