GroStar

Showing 1–9 of 12 results

• 

  GroStar EC Calibration Kit (2.77 EC, 8 oz. each)

  $14.99
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• 

  GroStar GS1 PH/Temp (2-IN-1) Pen

  $115.99
  Estimated delivery dates: Jun 30, 2026 - Jul 5, 2026
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• 

  GroStar GS1-E replacement pH electrode

  $50.99
  Estimated delivery dates: Jun 30, 2026 - Jul 5, 2026
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• 

  GroStar GS2 Soil PH/Temp (2-IN-1) Pen

  $256.99
  Estimated delivery dates: Jun 30, 2026 - Jul 5, 2026
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• 

  GroStar GS2-E replacement Soil Spear pH electrode

  $181.99
  Estimated delivery dates: Jun 30, 2026 - Jul 5, 2026
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• 

  GroStar GS3 EC/500ppm/700ppm/Temp (4-IN-1) Pen

  $113.99
  Estimated delivery dates: Jun 30, 2026 - Jul 5, 2026
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• 

  GroStar GS3-E replacement EC electrode

  $53.99
  Estimated delivery dates: Jun 30, 2026 - Jul 5, 2026
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• 

  GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen

  $178.99
  Estimated delivery dates: Jun 30, 2026 - Jul 5, 2026
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• 

  GroStar GS4-E replacement pH/EC combo electrode

  $79.99
  Estimated delivery dates: Jun 30, 2026 - Jul 5, 2026
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