Hanna GroLine Combo Meter Replacement Probe PTB1130VEP2 and any type of rockwool

and any type of rockwool

Why A&B nutrients

Foliar Application Rate: Apply at a rate of 5-10 ml per gallon of finished spray solution

Whiteflies

Contains 22% K2O

Hanna GroLine Combo Meter Replacement Probe PTB1130VEP2 and any type of rockwoolThe HI1285 7 is a 3 in 1 pre amplified multiparameter probe that measures pH, EC TDS, and temperature within a single polypropylene body. The pH portion of this probe is constructed with a cloth junction, maintenance free polymer gel electrolyte, and a low temperature glass sensing bulb. The EC TDS portion of this probe utilizes two stainless steel pins for an amperometric determination of conductivity and total dissolved solids. A built in