The Castle 777 is the original autoclave upon which the Midmark M-7 was based on. some of the parts r still the same as the 777. This autoclave is for parts only and it appears their is quite an interest in these units as there have been 3-4 sold recently. I am pricing the piece based on condition. There is no cord. Moderate corrosion throughout which can be easily removed. It is manual fill (no reservoir), extremely simple, basic in design and easy to use. Buy it and take the parts for a rebuild. A rebuilt 777 just sold over $700.