Showing 1–21 of 28 results

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  2.77 EC Conductivity Sol 250ml

  $8.16
• 

  Batteries for Pens PH/TDS

  $6.95
• 

  BL PH Probe KCI Storage Sol

  $11.95
• 

  Bluelab 2.77 EC Con.Sol.500 ml

  $10.99
• 

  BlueLab Combo Meter

  $308.00
• 

  Bluelab Guardian Monitor

  $364.00
• 

  Bluelab pH Pen

  $112.50
• 

  Combo pH/ ORP/ Temp Tester

  $187.95
• 

  Combo pH/EC/TDS/C Tester

  $194.95
• 

  Commercial Truncheon Meter

  $140.00
• 

  Electrode Cleaner 16oz 460ml

  $19.95
• 

  GH pH Up Liquid

  $10.76 – $26.90
• 

  GroChek pH/EC/TDS/C Portable

  $283.95
• 

  Grochek pHEP 4 WP Meter

  $113.95
• 

  Grow More pH Down 30%

  $13.95 – $31.95
• 

  Grow More pH Up 30%

  $13.95 – $31.95
• 

  Hanna 1413uS/CM Calibration Solution Pint (12/Cs)

  $20.49
• 

  Hanna 1500PPM Calibration Solution Pint (12/Cs)

  $20.49
• 

  Hanna DiST 5 Waterproof EC/TDS Temperature Tester (HI 98311)

  $127.95
• 

  Hanna pH/TDS/Temp Monitor (HI 981504/7)

  $274.95
• 

  pH 4.0 Calibration Sol 250 ml

  $8.16