NOT WATER TESTED. ONE UNIT INCLUDED. It turns on and appears to work as intended from a plug in test. It was pulled from the office of a bankrupt company, said to have been working before closure but has been sitting for over a year. I would predict needing to descale the unit. No notable physical flaws, it looks excellent. It will be wiped down before shipping. NOTE: It will come with all the parts, any in the photo missing parts will be complete before sending. Comes from a Smoke Free and Pet-Free home. Shipping/Payments: Payment is expected within 3 days of auction/listing end. Combined shipping is avaliable, requests for combined shipping on 'free shipping' items may sometimes result in the price of the item to be lowered if applicable. International Shipping: It's your responsibility to know your custom laws, I am not responsible for additional custom fees, violation of importation laws and/or most other problems that may occur at (non-US) customs.