A big difference
Ronco tanks are about 50% thicker--minimum of about 3/8" for their smallest tank, compared to only 1/4" for the largest Todd tanks...corners are even thicker, which means the walls are strong enough to support the weight of the contents without bulging or distorting...400 shapes and sizes--including over 100 non-rectangular--available, compared to and the customer can specify fittings sizes and locations when he orders the tank.Nor do you have to go through a local retailer...you can buy direct from Ronco for a LOT less--their catalog is on the web at http://www.ronco-plastics.com ...and the shipping isn't that bad if you use postal shipping instead of UPS or another shipper.