The Pro-Con System Flexdose Dispenser is the ultimate solution for diluting Pro-Con ultra-concentrates on the go. Light-weight, portable and durable means it can go anywhere it is needed. The Flexdose Dispenser can be easily adjusted to dispense our ultra-concentrates in 1/4, 1/2, and 1 ounce increments to fit your specific needs. It easily attaches to our half-gallon ultra-concentrates and makes diluting as simple as a single pump.