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PHOTOBIO Advanced Quantum PAR Meter

$199.99  $143.51

Earn 1436 points
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GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen

$178.99  $123.50

Earn 1235 points
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Autopilot Surge Protector with 8 outlets & timer

$28.33  $23.99

Earn 240 points
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GroStar EC Calibration Kit (2.77 EC, 8 oz. each)

$14.99  $11.24

Earn 113 points
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GroStar pH Probe Maintanence Kit

$23.99  $17.27

Earn 173 points
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GroStar pH calibration kit (pH 4/7/10, 8 oz. each)

$28.99  $20.87

Earn 209 points
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GroStar GS4-E replacement pH/EC combo electrode

$79.99  $57.59

Earn 576 points
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GroStar GS3-E replacement EC electrode

$53.99  $38.87

Earn 389 points
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GroStar GS2-E replacement Soil Spear pH electrode

$181.99  $125.57

Earn 1256 points
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GroStar GS1-E replacement pH electrode

$50.99  $36.71

Earn 368 points
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GroStar GS2 Soil pH Pen

$256.99  $177.32

Earn 1774 points
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GroStar GS3 EC Pen

$113.99  $82.07

Earn 821 points
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GroStar GS1 pH Pen

$115.99  $87.35

Earn 874 points
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iGS-221 CO2/RH/Temp Smart Controller

$999.99  $675.54

Earn 6756 points
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Digital Light Meter (Footcandles)

$55.69  $37.86

Earn 379 points
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Digital Integrated Sensor Module

$491.99  $332.67

Earn 3327 points
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HLC Advanced HID Lighting Controller

$92.65  $62.70

Earn 627 points