I picked the tub up used... it's an Emerald Spa... from what I can tell it was a 1992 model. The shell, jets and lines appear to be in good shape, but the control pack, although still functioning, is in very rough shape. Lots of rust and one dead rodent that apparently met its demise in the blower. I live in upper Michigan and I don't want to take the chance of making a giant Ice Cube in January! For all of the necessary replacement parts including an ozonator, 3hp pump, blower, heater and control pack, I'm looking at about $800.00.