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Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In Stock: 99
$33.98 $35.00 -3%
HM Digital Replacement pH Sensor Probe for HM-500
Out of stock
$32.80 $59.99 -45%
Hanna 4.01 pH Buffer Solution | 500ml
In Stock: 16
$27.99
Hanna 7.01 pH Buffer Solution | 500ml
In Stock: 16
$27.99
Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm
In Stock: 10
$27.99
Bluelab pH Probe KCl Storage Solution | 250ml
In Stock: 120
$27.58 $35.86 -23%
Bluelab Probe Care Kit | for Bluelab pH Probes
In Stock: 11
$27.52 $34.48 -20%
Hydrofarm Electronic Water Timer
In Stock: 1143
$26.45 $31.49 -16%
Hanna General-Purpose Cleaning Solution | 230ml
In Stock: 6
$24.47 $26.59 -8%
GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
In Stock: 36
$24.35 $28.99 -16%
Bluelab Meter Carrying Case | Meter Not Included
In Stock: 170
$24.32 $29.08 -16%
Dilution Solutions PH Calibration Solution | 20pcs
In Stock: 2
$24.14 $24.95 -3%
HM Digital TDS-3 Handheld TDS meter
In Stock: 30
$23.42 $33.99 -31%
Luster Leaf Rapitest Light & Moisture Meter | Dual Tester
In Stock: 44
$22.36 $29.99 -25%
Bluelab Conductivity Standard Solution | 500mL- 2.77 EC - Designed for Bluelab Products
In Stock: 131
$22.27 $28.73 -22%
Bluelab pH 4.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In Stock: 503
$22.11 $28.73 -23%
Bluelab pH 7.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In Stock: 165
$22.11 $28.73 -23%
GroStar pH Probe Maintanence Kit
In Stock: 87
$20.15 $23.99 -16%
Bluelab Probe Care Kit | for Bluelab Conductivity Probes
In Stock: 8
$19.84 $24.83 -20%
P3 International Save a Drop Water Meter
In Stock: 3414
$16.76 $19.95 -16%
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