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Meters/Timers

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Displaying 1 to 10 (of 34 products)  1  2  3  4  [Next >>] 
 Product Image   Product Name   Price+ 
 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.
 Milwaukee pH 7.01 Solution 20 ml   Milwaukee pH 7.01 Solution 20 ml   $1.50
 
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Calibration solution to test Milwaukee pH Pens.
 Calibration Solution 7.01 8 oz   Calibration Solution 7.01 8 oz   $7.95
 
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General Hydroponics™ uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl...
 GH 1500 TDS Solution 8 oz   GH 1500 TDS Solution 8 oz   $7.95
 
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General Hydroponics™ uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl...
 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 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 pt   GH pH Up pt   $7.95
 
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Concentrated base formula is used to raise the pH in a reservoir.
 Pen Batteries (4 pack)   Pen Batteries (4 pack)   $7.95
 
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Batteries for Ph & ppm pens. 4 per pack. 
 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...
 Milwaukee 1382 TDS Solution 220 ml   Milwaukee 1382 TDS Solution 220 ml   $9.95
 
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Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab...
Displaying 1 to 10 (of 34 products)  1  2  3  4  [Next >>]