Hello, I have 2 BRS 2 Part 1.1 ml per minute dosers for sale. These were never used. I bought them to finally start dosing my tank, and the tank cracked and flooded my house before I ever could use them. I should have just returned them but didnt get around to it. (440 gallons of water on the floor. Still battling with the tank manufacturer, but that is another story.) These are 70 dollars each brand new from BRS> I will do 40.00 shipped each, or 75 shipped if you take both. Thanks.