For Sale, one, used 540 gallon, Frank Knorr, Atlantic Welding, 304 stainless steel fermenter tank. On 4 legs with dish bottom and top with 1 1/2" bottom drain port and side racking port. Has large round side manway and small top opening with air lock. No valves or other type of fittings included. We can lay this tank down and strap it to a pallet and turn it over to your trucking company.