60ml Syringe with plastic needle for EC/pH tests
60ml Syringe with plastic needle for EC/pH tests at HorticultureSource.com -
Grodan 60ml Syringe with plastic needle for EC/pH tests (AD207079) 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. Manufacturer's Product Information MSRP each $ 5.45 Dimensions 0.75 x 0.5 x 6 Case Weight 3 Case Quantity 30