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Milwaukee Instruments pH600 Digital pH Pen
In stock
$29.48
Save 8%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In stock
$27.73 $30.00 -8%
Bluelab Meter Carrying Case | Meter Not Included
In stock
$27.38
Bluelab Probe Care Kit | for Bluelab pH & Conductivity Probes
In stock
$26.52
Save 16%
Hydrofarm Electronic Water Timer
In stock
$26.45 $31.49 -16%
Save 16%
GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
In stock
$24.35 $28.99 -16%
HM Digital TDS-3 Handheld TDS meter
In stock
$23.09 $33.99 -32%
Luster Leaf Rapitest Light & Moisture Meter | Dual Tester
In stock
$22.05 $29.99 -26%
Bluelab pH Probe KCl Storage Solution | 250ml
In stock
$21.24
Save 15%
Dilution Solutions PH Calibration Solution | 20pcs
In stock
$21.24 $24.95 -15%
Bluelab Probe Care Kit | for Bluelab pH Probes
In stock
$20.53
Save 16%
GroStar pH Probe Maintanence Kit
In stock
$20.15 $23.99 -16%
Bluelab Conductivity Standard Solution | 500mL- 2.77 EC - Designed for Bluelab Products
In stock
$16.98
Bluelab pH 4.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In stock
$16.96
Bluelab pH 7.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In stock
$16.96
Save 16%
P3 International Save a Drop Water Meter
In stock
$16.76 $19.95 -16%
Save 16%
GroStar pH calibration kit (pH 4/7, 8 oz. each)
In stock
$15.95 $18.99 -16%
Luster Leaf Rapitest Digital Soil pH Meter | Results From 3.5 - 9.0
In stock
$15.64 $21.29 -27%
Bluelab Probe Care Kit | for Bluelab Conductivity Probes
In stock
$14.55
Save 8%
Milwaukee Instruments pH 4.01 Calibration Solution, 230 ml
In stock
$12.84 $13.90 -8%
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