Top 9 pH Calibration Solution – Indoor Gardening & Hydroponics

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1. General Hydroponics

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8 Ounces, 1 bottle, General Hydroponics Ph 7.0 Calibration Solution

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General Hydroponics #ad - Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General hydroponics uses the highest quality electronic meter reference solutions. General hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.
BrandGeneral Hydroponics #ad
ManufacturerGeneral Hydroponics #ad
Height1.8 Inches
Length1.8 Inches
Weight0.65 Pounds
Width6.1 Inches
Part Number722030
ModelGH1551

2. General Hydroponics

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8 Oz, General Hydroponics pH 7.0 Calibration Solution

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General Hydroponics #ad - Ensure accuracy with our high quality equipment. Best brands covered by manufacturer’s warranty. Monitor your garden for optimal results. Another great item from Flora Hydroponics.
BrandGeneral Hydroponics #ad
ManufacturerGeneral Hydroponics #ad
Height1.8 Inches
Length1.3 Inches
Weight0.5 Pounds
Width6 Inches
Part NumberGH1551
ModelGeneral Hydroponics PH 4.01 Calibration

3. 7Pros

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And 9.18pH to calibrate Your PH Tester, for Precise pH Meter Calibration, 6.86pH, Make 250 ml of Each 4.00pH, 15 Pack PH Calibration Buffer Solution Powder Set

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7Pros #ad - Fast and easy. No need to measure, just mix individual packs with distilled water. Each set includes one package of 4. 00, one of 6. 86 and one of 9. 18 calibration solution for all pH needs. You get 5 sets. Accuracy. This lets you keep them longer and more readily available without needing more packets! Calibration powders enable you to test the pH of your pool, water, aquarium, and more quickly with your pH tester / meter. Long -term use. Save time and money by mixing powders in a jar of distilled water. Full range.
Brand7Pros #ad
Manufacturer7Pros #ad
Weight0.09 Pounds
Part NumberBF

4. Bluelab

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500 milliliters, Bluelab PH 7.0 Calibration Solution

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Bluelab #ad - Ph instruments are calibrated to pH 7. 0 first buffer then to pH 4. 0 slope. Store in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.
BrandBluelab #ad
ManufactureriPower Distributor L&G #ad
Height7.2 Inches
Length2.7 Inches
Weight1.1 Pounds
Width2.7 Inches
Part Number732896
Model732896

5. Snowsound

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12-Pack PH Buffer Powder for PH Test Meter Measure Calibration Point 4.00 6.86 9.18

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Snowsound #ad - Each set includes 4. 01, 6. 86, 9. 18 calibration solution for all pH needs. Just add water or distilled water, this lets you keep them longer and more readily available without needing more packets. Calibration powders enable you to test the pH of your pool, water, aquarium, and more quickly with your pH tester / meter. Bpa free and free from any other harmful and toxic chemicals. Fast and easy, no need to measure, just mix individual packs with distilled water.
BrandSnowsound #ad
ManufacturerSnowsound #ad
Part NumberSS-BUFF-00B

6. General Hydroponics

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Brown/A, 1 Quart, General Hydroponics 722020 Plant Nutrient

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General Hydroponics #ad - Compatible with many popular brands of PH, EC and TDS meters NaCl scale or the 442 scale. Each batch is checked to ensure that our solutions are precisely calibrated. Highest quality reference solutions.
BrandGeneral Hydroponics #ad
ManufacturerGeneral Hydroponics #ad
Height9 Inches
Length3.3 Inches
Weight2.1 Pounds
Width3.2 Inches
Part Number722020
Model722020

7. General Hydroponics

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8 Ounce, 8-Ounc, General Hydroponics GH1541 PH 4.01 Calibration Solution for Gardening, Natural

#ad
General Hydroponics #ad - Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General hydroponics uses the highest quality electronic meter reference solutions. General hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.
BrandGeneral Hydroponics #ad
ManufacturerGeneral Hydroponics #ad
Height1.8 Inches
Length1.3 Inches
Weight0.65 Pounds
Width6 Inches
Part NumberGeneral Hydroponics PH 4.01 Calibration
ModelGH1541

8. Bluelab

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Bluelab Calibration Buffer Solutions 20ml Sachets, ph 7.0 4.0 2.77 EC PH 7.0 10pk

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Bluelab #ad - Bluelab's 2. 77ec conductivity solution, pH 7. 0 and pH 4. 0 calibration Solutions are now available in 20ml sachets.
BrandBluelab #ad
ManufacturerBluelab #ad

9. General Hydroponics

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General Hydroponics HGC722080 pH Control Kit for a Balanced Nutrient Solution

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General Hydroponics #ad - General hydroponics ph control kit contains 8 ounce pH up, 8 ounce pH down, 1 ounce indicator and vial. Many growers prefer our pH test kit to expensive electronic meters because of its reliability and ease of use. Simply 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. General hydroponics pH control kit makes pH testing easy.
BrandGeneral Hydroponics #ad
ManufacturerGeneral Hydroponics #ad
Height2.7 Inches
Length5.8 Inches
Weight1.5 Pounds
Width4.8 Inches
Part Number722080
ModelHGC722080