pH, ORP, ISE Testing


Essential testing for water chemistry control.


pH, ORP, and ISE testing solutions ensure proper water balance and treatment efficiency. These tools provide precise readings in municipal and industrial settings and optimize water quality.

Hach Buffer Solution, pH 7.00, 1 L, LZW9467.97
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Hach Buffer Solution, pH 7.00, 1 L, LZW9467.97
$46.65

Mfr. Part # LZW9467.97

Product # 703820

Hach Buffer Solution, pH 10.01, 250 mL, LZW9471.99
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Hach Buffer Solution, pH 10.01, 250 mL, LZW9471.99
$24.29

Mfr. Part # LZW9471.99

Product # 703822

Hach Buffer Solution, pH 10.01, 125 mL, LZW9470.99
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Hach Buffer Solution, pH 10.01, 125 mL, LZW9470.99
$19.75

Mfr. Part # LZW9470.99

Product # 703821

Hach Buffer Solution, pH 4.01, 1 L, LZW9466.99
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Hach Buffer Solution, pH 4.01, 1 L, LZW9466.99
$46.65

Mfr. Part # LZW9466.99

Product # 703819

Hach Buffer Solution, pH 7.00, 250mL, LZW9464.97
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Hach Buffer Solution, pH 7.00, 250mL, LZW9464.97
$24.29

Mfr. Part # LZW9464.97

Product # 703818

Hach Buffer Solution, pH 4.01, 250 mL, LZW9463.99
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Hach Buffer Solution, pH 4.01, 250 mL, LZW9463.99
$24.29

Mfr. Part # LZW9463.99

Product # 703817

Hach Buffer Solution, pH 7.00, 125mL, LZW9461.97
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Hach Buffer Solution, pH 7.00, 125mL, LZW9461.97
$19.75

Mfr. Part # LZW9461.97

Product # 703816

Hach Buffer Solution, pH 4.01, 125 mL, LZW9460.99
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Hach Buffer Solution, pH 4.01, 125 mL, LZW9460.99
$19.75

Mfr. Part # LZW9460.99

Product # 703815

Hach Buffer Powder Pillows, pH 8.30, 50 mL, pk/25, 89868
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Hach Buffer Powder Pillows, pH 8.30, 50 mL, pk/25, 89868
$31.69

Mfr. Part # 89868

Product # 700691

Hach Buffer Powder Pillows, pH 4.50, 50 mL, pk/25, 89568
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Hach Buffer Powder Pillows, pH 4.50, 50 mL, pk/25, 89568
$31.35

Mfr. Part # 89568

Product # 700690

Hach Buffer Powder Pillows, pH 4.01 Color-coded Red, pk/15, 2226995
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Hach Buffer Powder Pillows, pH 4.01, Color-coded Red, Pack of 15, 2226995
$18.15

Mfr. Part # 2226995

Product # 700049

Hach SINGLET™ Single-Use pH Buffer Kit, pH 7.00 & 10.01, pk/2x10, 2769820
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Hach SINGLET Single-Use pH Buffer Kit pH 7.00 & 10.01 2/pk of 10 2769820
$50.79

Mfr. Part # 2769820

Product # 700048

Hach SINGLET™ Single-Use pH Buffer Kit, pH 4.01 & 7.00, 2/pk of 10, 2769920
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Hach SINGLET Single-Use pH Buffer Kit pH 4.01 & 7.00 2/pk of 10 2769920
$50.79

Mfr. Part # 2769920

Product # 700047

Hach Buffer Solution Kit, Color-coded, pH 4.01, pH 7.00 and pH 10.01, 20 L, 2507300
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Hach Buffer Solution Kit Color-coded pH 4.01 pH 7.00 & pH 10.01 20 L 2507300
$406.00

Mfr. Part # 2507300

Product # 700080

Hach Buffer Solution, pH 10.01, Color-coded Blue, 20 L, 2283661
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Hach Buffer Solution, pH 10.01, Color-coded Blue, 20 L, 2283661
$209.00

Mfr. Part # 2283661

Product # 700075

Hach Buffer Solution, pH 7.00, Color-coded Yellow, 20 L
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Hach Buffer Solution pH 7.00 Color-coded Yellow 20 L 2283561
$209.00

Mfr. Part # 2283561

Product # 700070

Hach Buffer Solution, pH 4.01, Color-coded Red, 20 L, 2283461
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Hach Buffer Solution, pH 4.01, Color-coded Red, 20 L, 2283461
$209.00

Mfr. Part # 2283461

Product # 700065

Hach Buffer Powder Pillows, pH 10.01 Color-coded Blue, pk/250, 2227164
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Hach Buffer Powder Pillows, pH 10.01, Color-coded Blue, Pack of 250, 2227164
$139.00

Mfr. Part # 2227164

Product # 700062

Hach Buffer Powder Pillows, pH 10.01 Color-coded Blue, pk/15, 2227195
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Hach Buffer Powder Pillows, pH 10.01, Color-coded Blue, Pack of 15, 2227195
$18.15

Mfr. Part # 2227195

Product # 700060

Hach Buffer Powder Pillows, pH 9.00, pk/50, 1410766
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Hach Buffer Powder Pillows, pH 9.00, pk/50, 1410766
$37.75

Mfr. Part # 1410766

Product # 700059

Hach Buffer Powder Pillows, pH 8.00, pk/15, 1407995
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Hach Buffer Powder Pillows, pH 8.00, pk/15, 1407995
$21.75

Mfr. Part # 1407995

Product # 700058

Hach Buffer Powder Pillows, pH 7.00 Color-coded Yellow, pk/250, 2227064
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Hach Buffer Powder Pillows, pH 7.00, Color-coded Yellow, Pack of 250, 2227064
$139.00

Mfr. Part # 2227064

Product # 700057

Hach Buffer Powder Pillows, pH 7.00 Color-coded Yellow, pk/15, 2227095
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Hach Buffer Powder Pillows, pH 7.00, Color-coded Yellow, Pack of 15, 2227095
$18.15

Mfr. Part # 2227095

Product # 700055

Hach Buffer Powder Pillows, pH 6.86, pk/15, 1409895
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Hach Buffer Powder Pillows, pH 6.86, pk/15, 1409895
$21.75

Mfr. Part # 1409895

Product # 700054

Hach Buffer Powder Pillows, pH 4.01 Color-coded Red, pk/250, 2226964
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Hach Buffer Powder Pillows, pH 4.01, Color-coded Red, Pack of 250, 2226964
$139.00

Mfr. Part # 2226964

Product # 700051

Hach SINGLET™ Single-Use pH Buffer, pH 7.00, pk/20, 2770120
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Hach SINGLET Single-Use pH Buffer pH 7.00 pk/20 2770120
$51.60

Mfr. Part # 2770120

Product # 700045

Hach SINGLET™ Single-Use pH Buffer, pH 4.01, pk/20, 2770020
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Hach SINGLET™ Single-Use pH Buffer, pH 4.01, pk/20, 2770020
$51.60

Mfr. Part # 2770020

Product # 700044

Hach SINGLET™ Single-Use pH Buffer, pH 10.01, pk/20, 2770220
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Hach SINGLET Single-Use pH Buffer pH 10.01 pk/20 2770220
$51.60

Mfr. Part # 2770220

Product # 700046

Hach Buffer Solution, pH 7.00, Color-coded Yellow, 500 mL, 2283549
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Hach Buffer Solution, pH 7.00, Color-coded Yellow, 500 mL, 2283549
$19.59

Mfr. Part # 2283549

Product # 700068

Hach Buffer Solution, pH 7.00, Color-coded Yellow, 4 L, 2283556
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Hach Buffer Solution, pH 7.00, Color-coded Yellow, 4 L, 2283556
$75.79

Mfr. Part # 2283556

Product # 700069

Hach Buffer Solution, pH 7.00, Color-coded Yellow, 50 mL, 2283526
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Hach Buffer Solution, pH 7.00, Color-coded Yellow, 50 mL, 2283526
$13.29

Mfr. Part # 2283526

Product # 701388

Hach Buffer Solution, pH 7.00, 500 mL, 1222249
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Hach Buffer Solution, pH 7.00, 500 mL, 1222249
$19.59

Mfr. Part # 1222249

Product # 700071

Hach Buffer Solution, pH 7.00, 4 L, 1222256
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Hach Buffer Solution, pH 7.00, 4 L, 1222256
$75.79

Mfr. Part # 1222256

Product # 700072

Hach Buffer Solution, pH 4.01, 4 L, 1222356
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Hach Buffer Solution, pH 4.01, 4 L, 1222356
$75.79

Mfr. Part # 1222356

Product # 700067

Hach Buffer Solution, pH 4.01, Color-coded Red, 50 mL, 2283426
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Hach Buffer Solution, pH 4.01, Color-coded Red, 50 mL, 2283426
$13.29

Mfr. Part # 2283426

Product # 701386

Hach Buffer Solution, pH 4.01, Color-coded Red, 500 mL, 2283449
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Hach Buffer Solution, pH 4.01, Color-coded Red, 500 mL, 2283449
$19.59

Mfr. Part # 2283449

Product # 700063

Hach Buffer Solution, pH 4.01, Color-coded Red, 4 L, 2283456
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Hach Buffer Solution, pH 4.01, Color-coded Red, 4 L, 2283456
$75.79

Mfr. Part # 2283456

Product # 700064

Hach Buffer Solution, pH 10.01, 500 mL, 1222149
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Hach Buffer Solution, pH 10.01, 500 mL, 1222149
$19.59

Mfr. Part # 1222149

Product # 700076

Hach Buffer Solution, pH 4.01, 500 mL, 1222349
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Hach Buffer Solution, pH 4.01, 500 mL, 1222349
$19.59

Mfr. Part # 1222349

Product # 700066

Hach Buffer Solution, pH 10.01, Color-coded Blue, 500 mL, 2283649
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Hach Buffer Solution, pH 10.01, Color-coded Blue, 500 mL, 2283649
$19.59

Mfr. Part # 2283649

Product # 700073

Hach Buffer Solution, pH 10.01, Color-coded Blue, 50 mL, 2283626
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Hach Buffer Solution, pH 10.01, Color-coded Blue, 50 mL, 2283626
$13.29

Mfr. Part # 2283626

Product # 701390

Hach Buffer Solution, pH 10.01, Color-coded Blue, 4 L, 2283656
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Hach Buffer Solution, pH 10.01, Color-coded Blue, 4 L, 2283656
$75.79

Mfr. Part # 2283656

Product # 700074

Hach Buffer Solution, pH 10.01, 4 L, 1222156
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Hach Buffer Solution, pH 10.01, 4 L, 1222156
$75.79

Mfr. Part # 1222156

Product # 700077

Hach Buffer Solution Kit, Color-coded, pH 4.01, pH 7.00 and pH 10.01, 500 mL, 2947600
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Hach Chemicals Buffer Solution Kit Color-coded pH 4.01 pH 7.00 & pH 10.01 500 mL 2947600
$40.75

Mfr. Part # 2947600

Product # 700078

Hach Buffer Solution Kit, Color-coded, pH 4.01, pH 7.00 and pH 10.01, 4 L, 2507200
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Hach Buffer Solution Kit Color-coded pH 4.01 pH 7.00 & pH 10.01 4 L 2507200
$157.00

Mfr. Part # 2507200

Product # 700079

Hach Buffer Powder Pillows, pH 7.00 Color-coded Yellow, pk/50, 2227066
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Hach Buffer Powder Pillows, pH 7.00, Color-coded Yellow, Pack of 50, 2227066
$33.95

Mfr. Part # 2227066

Product # 700056

Hach Buffer Powder Pillows, pH 6.00, pk/50, 1405566
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Hach Buffer Powder Pillows, pH 6.00, pk/50, 1405566
$35.95

Mfr. Part # 1405566

Product # 700053

Hach Buffer Powder Pillows, pH 4.01 Color-coded Red, pk/50, 2226966
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Hach Buffer Powder Pillows, pH 4.01 Color-coded Red, pk/50, 2226966
$33.95

Mfr. Part # 2226966

Product # 700050