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pH Meters

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GroStar GS2 Soil pH Pen
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$212.78 $256.99 -17%
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GroStar GS2-E replacement Soil Spear pH electrode
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$150.68 $181.99 -17%
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GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
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$148.20 $178.99 -17%
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GroStar GS1 pH Pen
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$96.81 $115.99 -17%
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GroStar GS4-E replacement pH/EC combo electrode
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$66.23 $79.99 -17%
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GroStar GS1-E replacement pH electrode
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$42.21 $50.99 -17%
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GroStar pH Probe Maintanence Kit
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$19.86 $23.99 -17%
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