Selling a new BRS doser for $40. Comes with 3 replacement silicone tubes that were purchased as backup. Also, you will get two additional BRS dosers for free. One 50 ml and the other 1.1 ml per min that get stuck sometimes (The two on the left side of the pic). If you can trouble shoot and repair them, you'll have three working. Cash and carry. Pickup in Bayside, Queens. Thanks for looking.