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	General Hydroponics Calibration pH 7.01 Calibration Solution -- 8 oz General Hydroponicsâ„¢ uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponicsâ„¢ technicians check each batch to ensure that our... Only $6.23
	General Hydroponics pH Up Liquid -- Quart The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. To maximize plant growth, the pH of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5.... Only $7.40
	General Hydroponics pH Down Liquid -- Quart The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. To maximize plant growth, the pH of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5.... Only $7.40
	General Hydroponics pH Down 2.2 lbs Dry *DISCONTINUED* The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. To maximize plant growth, the pH of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5.... Only $9.13
	pH Test Indicator Solution 1 oz General Hydroponics pH Test Kits make pH testing easy. 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. Many experienced growers prefer our pH Test Kit to expensive... Only $6.92
	Milwaukee 4.01 Buffer Solution -- 220 ml 220 ml 4.01 Ph Calibration solution. Only $8.91
	Humboldt Nutrients Grow 2 - 1 - 6 -- 1 Quart Humboldt Nutrients Grow formula, was designed in Humboldt County to be used with our Micro and Bloom to be a complete growing nutrient system for hydroponics as well as other growing mediums. Humboldt Nutrients has developed this vigorous three-part fertilizer... Only $9.73
	Humboldt Nutrients Bloom 0 - 6 - 5 -- 1 Quart Bloom is part of our 3-Part Base Nutrient Program. The precise formulas when used with our Grow and Micro contain the ideal mix of nitrogen, phosphorous, potassium, micro-nutrients and trace elements needed for full-flavored harvests. Our 3-part line... Only $9.73
	Down To Earth - Acid Mix (4 - 3 - 6) - 6 lb A fertilizer blended specially for acid soil loving plants like rhododendrons, azaleas, hydrangeas, evergreen trees and shrubs, blueberries, raspberries and other plants that thrive in a low pH soil. To encourage lush flowers and fruit, apply Acid Mix... Only $9.10