pH Test Kit
(Wide Spectrum) Measures 3-10 pH. The Hydroponic pH test kit is good for 150 tests. At the rate of 3..
 pH Tester Sensor Replacement for pH tester 10, 20, 30
Expand the lifetime of your Oakton pH tester by keeping these replacemen sensors on hand. These pH t..
 pHTester 10 -- .1 pH Accuracy *ATC (Automatic Temperat
Optimize nutrient strength during growth, flowering, and fruiting by knowing exactly what is going o..
1000ppm Calibration Solution
NaCl calibration solution 1000 ppm comes in lightweight HDPE plastic bottles. Sealed with a coated f..
12.880ms/cm Conductivity Solut
Milwaukee Instruments;M10030B calibration solution;12.880 mS/cm;20 ml sachet;conductivity meterFormu..
12880 S/ cm conductivity solution
This Hanna conductivity calibration solution is widely used to assure the proper performance of cond..
12880mS/cm Calib Sol 20ml
Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments..
1382 PPM Solution 220ml
Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-p..
1382ppm Solution, 230ml
The conductivity solutions are made of high quality potassium chloride with different strengths. The..
1382ppm TDS Sol, 460ml
Hanna Instruments' testing solution, ideal for gardening, laboratory work, and field experiments, co..
1382PPM@25c Calibration Soluti
Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments..
1413 US Solution 500 ml
Standards have KCl, NaCl and 442 conversions printed on the bottle for ease of use. Temperature corr..
1413mS/cm Calibration Sol. 25x
Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments..
1413mS/cm Sol. 230mL
All Hanna solution bottles come with a pH Vs. temperature chart together with the production lot # a..
1500 ppm Calibration Solution 1 qt
General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use o..
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