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Showing all 12 results
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GroStar EC Calibration Kit (2.77 EC, 8 oz. each)
$13.49 -
GroStar pH Probe Maintanence Kit
$21.59 -
GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
$26.09 -
GroStar pH calibration kit (pH 4/7, 8 oz. each)
$17.09 -
GroStar GS4-E replacement pH/EC combo electrode
$71.99 -
GroStar GS3-E replacement EC electrode
$48.59 -
GroStar GS2-E replacement Soil Spear pH electrode
$163.79 -
GroStar GS1-E replacement pH electrode
$45.89 -
GroStar GS2 Soil pH Pen
$231.29 -
GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
$161.09 -
GroStar GS3 EC Pen
$102.59 -
GroStar GS1 pH Pen
$109.19