This is under 4 months old and was replaced with a Bubble Magnus as my other units are Magnus. I wanted them all to be the same. This comes with original box, Power pack, etc. Salt free with crystal clear display and VERY EASY to set up. You tube has great videos on this unit. Also will include a Replacement tube, enough for ALL 4 channels in the event of future replacement. ADD $15 and i'll throw in an acrylic 4 station dosing tube holder which Clamps nicely to sump and is new Plus, I will add 2 dosing containers. They're nothing Fancy but work perfect and hold about 1.5L of liquid FIRM at $60 shipping for Doser only and/or Firm at $75 for doser, tube holder and two containers for doser.