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    $35.70
    Supelco Ph-Indicator Strips Ph 0 - 14 Universal Indicator, Non-Bleeding, Ph Range 0-14, Graduations & Accuracy Accuracy: 1 Ph Unit, For Use With Mquant Str 100 Strips | Paper
    Sigma-Aldrich
    $35.70
    Supelco Ph-Indicator Strips Ph 0 - 14 Universal Indicator, Non-Bleeding, Ph Range 0-14, Graduations & Accuracy Accuracy: 1 Ph Unit, For Use With Mquant Str 100 Strips | Paper
    Sigma-Aldrich
    $21.99
    Digital Ph Meter Tester Pen With 3 Calibration Powders, 0.01 Accuracy, Pocket Size, LCD Display For Household Drinking, Pool And Aquarium
    Amazon.com
    2K+
    $21.99
    Digital Ph Meter Tester Pen With 3 Calibration Powders, 0.01 Accuracy, Pocket Size, LCD Display For Household Drinking, Pool And Aquarium
    Amazon.com
    $135.80
    Oakton Pocket Ecotestr Ph 2 Plus By Oakton | Cole-Parmer
    Cole-Parmer
    $135.80
    Oakton Pocket Ecotestr Ph 2 Plus By Oakton | Cole-Parmer
    Cole-Parmer
    $56.10
    APERA INSTRUMENTS AI209 Value Series PH20 Waterproof Ph Tester Kit, ±0.1 Ph Accuracy
    Amazon.com
    7K+
    Free shipping
    $56.10
    APERA INSTRUMENTS AI209 Value Series PH20 Waterproof Ph Tester Kit, ±0.1 Ph Accuracy
    Amazon.com
    $59.99
    Hanna Checker® Plus Ph Tester - HI98100
    Hanna Instruments
    2
    $59.99
    Hanna Checker® Plus Ph Tester - HI98100
    Hanna Instruments
    $72.95
    $74.99
    Triplett PH325 Long Tube Stem Ph Meter
    Test Equipment Depot
    $72.95
    $74.99
    Triplett PH325 Long Tube Stem Ph Meter
    Test Equipment Depot
    $19.99
    LACHOI Ph Meter With ATC Digital PH Tester Pen With Backlight 0.01 High Accuracy Waterproof Ph Tester Kit PH Pen Meter Temp/Water Tester For
    Amazon.com
    45
    $19.99
    LACHOI Ph Meter With ATC Digital PH Tester Pen With Backlight 0.01 High Accuracy Waterproof Ph Tester Kit PH Pen Meter Temp/Water Tester For
    Amazon.com
    $140.90
    Oakton Phtestr 5 Waterproof Ph Pocket Tester | Cole-Parmer
    Cole-Parmer
    $140.90
    Oakton Phtestr 5 Waterproof Ph Pocket Tester | Cole-Parmer
    Cole-Parmer
    $155.40
    Oakton Phtestr 30+ Waterproof Pocket Tester | Cole-Parmer
    Cole-Parmer
    $155.40
    Oakton Phtestr 30+ Waterproof Pocket Tester | Cole-Parmer
    Cole-Parmer
    $139.99
    Hanna Meat Ph Tester - HI981036
    Hanna Instruments
    $139.99
    Hanna Meat Ph Tester - HI981036
    Hanna Instruments
    $139.99
    Hanna Beer Ph Tester - HI981031
    Hanna Instruments
    $139.99
    Hanna Beer Ph Tester - HI981031
    Hanna Instruments
    $272.98
    Beer Ph Tester
    Certified MTP
    $272.98
    Beer Ph Tester
    Certified MTP
    $154.00
    Supelco Ph Test, Colorimetric, Ph Range 4.5-9.0, Graduations & Accuracy Accuracy: 0.5 Ph Unit 400 Tests
    Sigma-Aldrich
    $154.00
    Supelco Ph Test, Colorimetric, Ph Range 4.5-9.0, Graduations & Accuracy Accuracy: 0.5 Ph Unit 400 Tests
    Sigma-Aldrich
    $82.51
    Checker Ph Tester With 0.1 Ph Resolution
    Certified MTP
    $82.51
    Checker Ph Tester With 0.1 Ph Resolution
    Certified MTP
    $197.95
    $221.95
    MSE PRO ±0.05Ph Pocket PH Tester
    MSE Supplies
    10% off
    $197.95
    $221.95
    MSE PRO ±0.05Ph Pocket PH Tester
    MSE Supplies
    $263.95
    $295.95
    MSE PRO Dual Line LCD Pocket PH Tester
    MSE Supplies
    10% off
    $263.95
    $295.95
    MSE PRO Dual Line LCD Pocket PH Tester
    MSE Supplies
    $115.90
    Hach Pocket Pro Ph Tester 9531000E
    PoolZoom.com
    $115.90
    Hach Pocket Pro Ph Tester 9531000E
    PoolZoom.com
    $850.00
    HOBO Ph And Temperature Data Logger - Bluetooth-Enabled Logger
    Onset Computer Corporation
    $850.00
    HOBO Ph And Temperature Data Logger - Bluetooth-Enabled Logger
    Onset Computer Corporation