Acquired from a reliable source. We are surplus equipment dealers and do not have the ability or knowledge to test equipment for functionality beyond plugging it in and describing what we observe as best we can.2 You are purchasing used equipment most is untested as stated in our description. Please reach out to us directly if there is a problem. We are quick to respond and resolve. Used items have a 30-day return. We have no knowledge of the history of the equipment. We do not have power cords to provide unless they are attached to the item or unless stated that they are provided. If one is pictured it is for testing purposes only unless it is attached or stated that it will be included. Our items do not come with manuals or any other accessories unless shown and/or stated that they are included. The item "CANBERRA LIQUID NITROGEN TANK LN2 DEWAR 30 LITER (B7)" is in sale since Friday, January 31, 2020. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Other Medical & Lab Equipment". The seller is "solanotraders" and is located in Bosque Farms, New Mexico. This item can be shipped worldwide.