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    $88.60
    Oakton Ecotestr TDS1 Waterproof Pocket Tester | Cole-Parmer
    Cole-Parmer
    $88.60
    Oakton Ecotestr TDS1 Waterproof Pocket Tester | Cole-Parmer
    Cole-Parmer
    $88.60
    Oakton Ecotestr EC1 Waterproof Pocket Tester | Cole-Parmer
    Cole-Parmer
    $88.60
    Oakton Ecotestr EC1 Waterproof Pocket Tester | Cole-Parmer
    Cole-Parmer
    $88.60
    Oakton Ecotestr Ph1 Waterproof Pocket Tester | Cole-Parmer
    Cole-Parmer
    $88.60
    Oakton Ecotestr Ph1 Waterproof Pocket Tester | Cole-Parmer
    Cole-Parmer
    $200.00
    Oakton Phtestr 5 Waterproof Pocket Tester With Ph Buffer Pouches | Cole-Parmer
    Cole-Parmer
    $200.00
    Oakton Phtestr 5 Waterproof Pocket Tester With Ph Buffer Pouches | Cole-Parmer
    Cole-Parmer
    $1,079.00
    Orange Valve Tester Mark II Guitar Amp Automatic Tube Tester
    Sweetwater
    $1,079.00
    Orange Valve Tester Mark II Guitar Amp Automatic Tube Tester
    Sweetwater
    $117.99
    Exstik Conductivity/TDS/Salinity Meter Extech EC400 | Extech
    InspectorTools
    30-day returns (most items)
    $117.99
    Exstik Conductivity/TDS/Salinity Meter Extech EC400 | Extech
    InspectorTools
    $208.25
    Testo 206 Compact Ph Tester For Liquids, Ph1
    Globaltestsupply.com
    $208.25
    Testo 206 Compact Ph Tester For Liquids, Ph1
    Globaltestsupply.com
    $1,868.75
    Phase II Portable Hardness Tester PHT-1800 | Phase II +
    InspectorTools
    30-day returns (most items)
    $1,868.75
    Phase II Portable Hardness Tester PHT-1800 | Phase II +
    InspectorTools
    $28.86
    United Scientific™ CNDT01, Electric Conductivity Tester
    Amazon.com
    $28.86
    United Scientific™ CNDT01, Electric Conductivity Tester
    Amazon.com
    $1,389.00
    Phase II Portable Hardness Tester PHT-1700 | Phase II +
    InspectorTools
    30-day returns (most items)
    $1,389.00
    Phase II Portable Hardness Tester PHT-1700 | Phase II +
    InspectorTools
    $1,970.00
    Phase II Portable Hardness Tester PHT-1900 | Phase II +
    InspectorTools
    30-day returns (most items)
    $1,970.00
    Phase II Portable Hardness Tester PHT-1900 | Phase II +
    InspectorTools
    $480.25
    Testo 206 Compact Ph Tester For Semi-Solid Substances Starter Kit, Ph2
    Globaltestsupply.com
    $480.25
    Testo 206 Compact Ph Tester For Semi-Solid Substances Starter Kit, Ph2
    Globaltestsupply.com
    $348.50
    Testo 206 Compact Ph Tester For Liquids Starter Kit, Ph1
    Globaltestsupply.com
    $348.50
    Testo 206 Compact Ph Tester For Liquids Starter Kit, Ph1
    Globaltestsupply.com
    $248.00
    Groline Hydroponic Waterproof Pocket Ph/EC/TDS/Temperature Tester (HI98131)
    LED Lights Depot
    $248.00
    Groline Hydroponic Waterproof Pocket Ph/EC/TDS/Temperature Tester (HI98131)
    LED Lights Depot