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General Hydroponics

International Grower Supplies

Milwaukee Instruments

Olivia's Solution

Galaxy Electronic Ballasts

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  • 1382 TDS Solution, case of 25

    Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces.
    SKU:
    MI10032P

    Retail: $25.00

    Special Price: $18.40

  • 1413 mS Packet, case of 25

     Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces.
    SKU:
    MI10031P

    Retail: $25.00

    Special Price: $19.95

  • 1500 ppm Packet, case of 25

    This item is sachets

    Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces.

    SKU:
    MI10442P

    Retail: $25.00

    Special Price: $18.40

  • EC65 Waterproof Tester

    The C65 is a microprocessor based Conductivity Tester with a rugged one-piece IP67 waterproof casing. Immersible up to the LCD! This instrument is a low cost and easy to use Meter with a replaceable electrode.

    Some of the C64's features include:
    • Automatic Temperature Compensation
    • IP67 Waterproof Casing
    • Replaceable Electrode
    • Easy to Read LCD
    • Easy to Use
    Range 0 - 1999 S/cm
    Resolution-1 S/cm
    Accuracy - 2% full scale
    Calibration - Manual 1 point
    Electrode - Replaceable MA73075Temp.
    Compensation - Automatic 0 - 50C
    Battery Life - 250 hours of continuous useBattery Type 3 x 1.5V
    Environment 0 - 50C / 100% RH
    SKU:
    MIC65

    Retail: $80.95

    Special Price: $59.25

  • General Hydroponics 1500 ppm Calibration Solution 1 Quart

    General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.

    SKU:
    GH1572

    Retail: $21.50

    Special Price: $18.50

  • General Hydroponics 1500 ppm Calibration Solution 8 oz

    General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.

    SKU:
    GH1571
    $11.10
  • General Hydroponics pH 4.01 Calibration Solution 1 Quart

    General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.
    SKU:
    GH1542

    Retail: $21.50

    Special Price: $18.50

  • General Hydroponics pH 4.01 Calibration Solution 8 oz

    General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.
    SKU:
    GH1541
    $10.80
  • General Hydroponics pH 7.0 Calibration Solution 1 Quart

    General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.
    SKU:
    GH1552

    Retail: $21.50

    Special Price: $18.50

  • General Hydroponics pH 7.0 Calibration Solution 8 oz

    General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.
    SKU:
    GH1551
    $10.80
  • General Hydroponics pH Control Kit

    Contains Ph Up (add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level), Ph Down (uses food grade Phosphoric acid to lower the pH to the proper level), and Ph Test Indicator (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 per 5mL of solution).
    SKU:
    GH1514

    Retail: $17.20

    Special Price: $16.10

  • General Hydroponics pH Down 1 Gallon

    To maximize plant growth the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water or pH unstable media - such as rock wool and gravel products - are used and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level.
    SKU:
    GH1533EACH

    Retail: $27.95

    Special Price: $25.00

  • General Hydroponics pH Down 1 Quart

    To maximize plant growth the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water or pH unstable media - such as rock wool and gravel products - are used and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level.
    SKU:
    GH1532EACH

    Retail: $11.50

    Special Price: $11.00

  • General Hydroponics pH Down Dry 1.5lbs. Acid

    To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.

    pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level.

    SKU:
    GH1535
    $20.90
  • General Hydroponics pH Down Dry 16lbs. Acid

    To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.

    pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level.

    SKU:
    GH1537

    Retail: $64.50

    Special Price: $57.10

  • General Hydroponics pH Test Indicator 8 oz

    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 per 5mL of solution.
    SKU:
    GH1516
    $12.60
  • General Hydroponics pH Test Kit 1 oz

    pH test kit
    SKU:
    GH1515
    $10.80
  • General Hydroponics pH Up Four Gallons - one Case - Free Shipping

    To maximize plant growth the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water or pH unstable media - such as rock wool and gravel products - are used and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level.
    SKU:
    GH1523

    Retail: $107.60

    Special Price: $100.00

  • General Hydroponics pH Up 1 Gallon

    To maximize plant growth the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water or pH unstable media - such as rock wool and gravel products - are used and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.pH Down: Acid formulated using food grade Phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level.
    SKU:
    GH1523EACH

    Retail: $26.90

    Special Price: $21.52

  • General Hydroponics pH Up Dry 16lbs. Base

    To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.

    pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level.

    SKU:
    GH1527

    Retail: $106.00

    Special Price: $74.90

  • General Hydroponics pH Up Dry 2.2 lbs Base

    To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydroponics nutrient products generally do not experience problems maintaining the proper pH range because our formulas are pH buffered. However, some important exceptions do exist. Acid content can reach unacceptable levels when nutrient solutions are mixed with poor quality water, or pH unstable media - such as rock wool and gravel products - are used, and when high plant growth rates destabilize the nutrient mix due to rapid nutrient absorption by the crop.

    pH Up: Base formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level.

    SKU:
    GH1525
    $22.90
  • International Measure Mug

    Cross references all values for easy measuring,
    Sturdy, easily readable, large capacity & ergonomic

    Ideal for home, lawn, garden or kitchen. Dishwasher safe, permanent markings, high visability, with a heavy base to reduce tipping. Measures teaspoons, tablespoons, ounces, and milliliters.

    SKU:
    IGSMUG

    Retail: $14.99

    Special Price: $11.99

  • MA 850 Replacement probe for SM801/802

    MA 850 Replacement probe for SM801/802

    SKU:
    MIMA850

    Retail: $99.95

    Special Price: $73.11

  • Milwaukee 1382 PPM Solution 220ml

    Available in 220ml bottles and 20ml sachets. Traditional buffersolutions are packed in 220ml leak-proof bottles and are recommendedfor lab application. Sachets are sealed against light and air and areideal for on-the-spot calibration. Simply open, insert the tester orelectrode into the sachet and calibrate. Sachets are sold in boxes of25 pieces.
    SKU:
    MIMA9062

    Retail: $10.95

    Special Price: $10.40

  • Milwaukee 3 function MW802

     This 3-in-1 smart portable meter can read pH, EC, TDS and is temperature compensated. Easy to calibrate and includes calibration solution. Simple and ready to use right out of the box.
    SKU:
    MISM802

    Retail: $229.95

    Special Price: $176.60

  • Milwaukee Double Junction pH Electrode

    Replacement pH probe for Milwaukee sm101 & sms102
    Double Junction gel-filled pH Electrode with 1m cable.

    • SMART Standard PH-EC- TDS Ph monitor,
    • Range: 0.0 to 14.0 Ph, with 2 point manual calibration and accuracy of 0.2.
    • Set point range:3.5 to 7.5 ph and led visual alarm active when reading is higher than set point.
    • supplied with 12v DC power adapter.
    SKU:
    MIMA911B1

    Retail: $53.95

    Special Price: $41.43

  • Milwaukee pH - EC - TDS KIT

     Milwaukee Instruments AG900 provides instant readings of the three most important factors in efficient plant production: pH, EC, or TDS. The AG900 kit comes with an SM802 hand held microprocessor, calibration solution, measuring cup for soil testing, a comprehensive 21-page Operational and Testing manual, 9v battery as well as a protective carrying case.
    SKU:
    MIAG900

    Retail: $239.95

    Special Price: $188.61

  • Milwaukee PH 4.0 Solution 220ml

     Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces.
    SKU:
    MIMA9004

    Retail: $10.95

    Special Price: $10.40

  • Milwaukee PH 7.0 Solution 220ml

    Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are packed in 220ml leak-proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on-the-spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces.
    SKU:
    MIMA9007

    Retail: $10.95

    Special Price: $10.40

  • Milwaukee pH hand meter SM101

    Milwaukee pH hand meter SM101 +/-.02 special order only.
    SKU:
    MISM101

    Retail: $122.95

    Special Price: $89.28

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