Review on FJC 2730 Dye Injector by Matthew Seamster

Excellent injector. Works as intended. I wish the o-ring was a slightly stiffer material and the threads on the lid were cleaner. After a few uses you will start to push the o-ring through very slightly. No performance impact after a few dozen uses, but sometimes I have to wipe the inside of the injector and the threads of the tiny pieces of rubber that have come loose from the body O-ring.