Clean tanks, prices are slightly negotiable. The tanks have no leaks, if it's not for you, you can return it and get your money back, as a guarantee between me and you. From 1500 liters, price is 550 2000 liters new for 800, used for 650 3000 liters 900 4000 liters for 1050 5000 liters 1200 Up to 6000 liters 2600