Grodan AD207079 60ML Plastic Needle for EC/pH Tests Syringe, 60 ml
The perfect tool for watering Rockwool. The syringe with a needle made from 1/4" tubing allows you to easily take a water sample from your Rockwool. If the water sample shows too high pH, it is time to water again. Measures from 5 - 60 ml.
