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    Calibration Solution 1500PPM

    $1.40 $1.05
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    Combo pH/ ORP/ Temperature Tester

    $232.99 $174.74
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  • Sale!

    Combo pH/EC/TDS/C/PPM Tester

    $199.99 $149.99
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  • Sale!

    Conductivity/TDS Probe for Soil Measurement of HI993310

    $156.95 $117.71
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    Cont. pH/TDS/temp Monitor

    $252.95 $189.71
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    Continuous pH/TDS/temp Monitor

    $278.99 $209.24
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    DiST 1 TDS Tester

    $68.99 $51.74
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    DiST 5 EC/TDS Meter

    $131.99 $98.99
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  • Sale!

    Gro’chek replacement probe for HI9813-6

    $146.99 $110.24
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  • Sale!

    GroChek EC Electrode

    $57.95 $43.46
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    GroChek EC Monitor

    $114.95 $86.21
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  • Sale!

    GroChek Hanna pH Indicator

    $138.99 $104.24
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  • Sale!

    GroChek Hanna pH/EC/TDS/C/PPT Pocket Tester

    $199.99 $149.99
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  • Sale!

    GroChek pH & TDS Combo Continuous Reading Meter

    $224.99 $168.74
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  • Sale!

    GroChek pH/EC/TDS/Temp. Combo

    $259.99 $194.99
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  • Sale!

    Grochek Replacement Probe for HI9813-5 & HI9813-5N

    $146.99 $110.24
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  • Sale!

    Hanna Gro’CHEK pHEP 4 Meter

    $116.99 $87.74
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    Hanna Gro’CHEK pHEP 5 Meter

    $130.99 $98.24
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  • Sale!

    Mini pH Controller

    $213.95 $160.46
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    pH Combination Electrode

    $60.95 $45.71
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  • Sale!

    pH Combo Electrode Glass Body

    $192.95 $144.71
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  • Sale!

    pH Controller 115V

    $219.99 $164.99
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  • Sale!

    pH Electrode for HI98127/HI98128/HI98129/HI98130

    $72.99 $54.74
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  • Sale!

    ph Replacement Electrode

    $29.95 $22.46
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  • Sale!

    pH Soil Meter

    $455.95 $341.96
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  • Sale!

    PH/EC/TDS/C Portable Meters

    $266.99 $200.24
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    pHep Tester

    $64.99 $48.74
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    Primo TDS Tester

    $48.99 $36.74
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  • Sale!

    Replacement probe for HI9026

    $106.95 $80.21
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  • Sale!

    Soil Conductivity/Salinity Meter w/ Carrying Case

    $639.95 $479.96
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