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Reagents, Buffers & Standards

pH & ORP Buffers

We offer many pH and ORP solutions including calibration kits, electrode reference fills, calibration solutions, pH solutions and pH buffer solutions.

pH & ORP Buffers

65 Products

CPI-05942-10
Environmental Express Buffer Pack; 500 mL of each pH 4.01, 7.00, and 10.01
$36.22 $43.80

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CPI-00654-04
Environmental Express Buffer Solution, pH 7.00; 500 mL
$17.23 $20.10

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CPI-00654-00
Environmental Express Buffer Solution, pH 4.01; 500 mL
$17.23 $20.10

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CPI-00654-08
Environmental Express Buffer Solution, pH 10.01; 500 mL
$17.23 $20.10

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CPI-35653-04
Environmental Express Oakton pH Calibration Buffer Pouches, Assorted; 20/Pk
$58.55 $70.80

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CPI-35653-02
Environmental Express Oakton pH Calibration Buffer Pouches, pH 7.00; 20/Pk
$58.55 $70.80

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CPI-05942-44
Environmental Express Buffer Solution, pH 7.00; 1 gal.
$53.42 $64.60

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CPI-05942-15
Environmental Express pH Solutions Pack; pH 4.01/7.00/10.00, Storage/Cleaning, 500 mL each
$69.76 $84.35

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NTBU5007-Q
Nova-Tech pH 7.00 Calibration Buffer Solution, 1 L Bottle (each)
$27.62 $29.60

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NTBU5007-P
Nova-Tech pH 7.00 Calibration Buffer Solution, 500 mL Bottle (each)
$19.78 $21.20

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NTBU5004-Q
Nova-Tech pH 4.00 Calibration Buffer Solution, 1 L Bottle (each)
$27.62 $29.60

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NTBU5004-P
Nova-Tech pH 4.00 Calibration Buffer Solution, 500 mL Bottle (each)
$19.78 $21.20

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CPI-35653-03
Environmental Express Oakton pH Calibration Buffer Pouches, pH 10.00; 20/Pk
$58.55 $70.80

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CPI-35653-01
Environmental Express Oakton pH Calibration Buffer Pouches, pH 4.01; 20/Pk
$53.09 $64.20

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CPI-05942-42
Environmental Express Buffer Solution, pH 7.00; 1000 mL
$28.02 $32.70

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CPI-05942-24
Environmental Express Buffer Solution, pH 4.01; 1 gal.
$53.42 $64.60

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CPI-05942-22
Environmental Express Buffer Solution, pH 4.01; 1000 mL
$28.02 $32.70

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CPI-00651-08
Environmental Express Oakton CERTIFIED CRM pH Buffer, Yellow, pH 7; 500 mL
$26.48 $30.90

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CPI-00651-06
Environmental Express Oakton CERTIFIED pH CRM Buffer, Red, pH 4; 500 mL
$26.48 $30.90

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NTES9470-P
Nova-Tech pH Electrode Storage Solution, 500 mL Bottle (each)
$27.43 $29.40

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NTEC9500-P
Nova-Tech pH & ORP Electrode Cleaner Solution, 500 mL Bottle (each)
$20.11 $21.55

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NTBUFPAK
Nova-Tech pH Calibration Buffer Solution Pack (4, 7, 10, and Storage), 500 mL Bottles (pack of 4)
$63.14 $68.85

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NTBU5010-P
Nova-Tech pH 10.00 Calibration Buffer Solution, 500 mL Bottle (each)
$19.78 $21.20

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CPI-05942-64
Environmental Express Buffer Solution, pH 10.01; 1 gal.
$53.42 $64.60

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Select up to 4 items to compare.