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Meters/Timers

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Displaying 11 to 20 (of 34 products) [<< Prev]   1  2  3  4  [Next >>] 
 Product Image   Product Name-   Price 
 GH pH Down pt   GH pH Down pt   $7.95
 
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This concentrated acid formula is used to lower the pH in a reservoir.
 GH pH Down qt   GH pH Down qt   $12.95
 
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This concentrated acid formula is used to lower the pH in a reservoir.
 GH pH Test Indicator 8 oz   GH pH Test Indicator 8 oz   $9.95
 
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Fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Use 3 drops...
 GH pH Test Kit   GH pH Test Kit   $7.95
 
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1 oz. test kit with test vial offers wide spectrum testing (pH 4.0 to 8.5). This concentrated solution requires only 5 drops per test.
 GH pH Up Gal   GH pH Up Gal   $29.95
 
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Concentrated base formula is used to raise the pH in a reservoir.
 GH pH Up pt   GH pH Up pt   $7.95
 
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Concentrated base formula is used to raise the pH in a reservoir.
 GH pH Up qt   GH pH Up qt   $12.95
 
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Concentrated base formula is used to raise the pH in a reservoir.
 HF Digital Light Meter   HF Digital Light Meter   $59.95
 
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Measures grow lights or sunlight. Measures up to 5000 footcandles. 3 scales for precise readings. Convenient hand-held remote sensor. Lifetime...
 HF Light Meter   HF Light Meter   $29.95
 
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Photosynthesis & Plant Growth depend on the sun or specially designed lighting systems. But of that light reaching the plant, only specific types...
 Milwaukee 1382 TDS Calibration Solution 20 ml   Milwaukee 1382 TDS Calibration Solution 20 ml   $1.50
 
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Use to calibrate your Milwaukee Sharp TDS Tester. Available in 20 ml packets or 220 ml bottles.
Displaying 11 to 20 (of 34 products) [<< Prev]   1  2  3  4  [Next >>]