I have a Hydros IV. The unit is 2 - 3 months old. I have the original box and everything is in perfect working order. I am selling it with approx 300 ML of premixed hydros reagent and 3L of concentrated alkatronic regent which should basically last a year or more. The only thing you would need to purchase is the tubing (it uses Red Sea tubing and can also be converted to RODI tubing). The price is $90.00 shipped. The best way to contact me is via text 646 239 2887
Thanks,
Adam
Thanks,
Adam