HM Digital 1000 ppm NaCl Calibration Solution, 20 ml sachets, box of 20

HydroFarm

HM Digital 1000 ppm NaCl Calibration Solution, 20 ml sachets, box of 20[ HMDCP1000 ]

$15.92 $25.00
For optimal performance, re-calibrate your meters periodically with a 20 ml pack of 1000ppm calibration solution.


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