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The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. This powdered acid formula is easy to handle and ship. Lightweight in comparison to liquids. Widely recognized as a consistent and reliable product.
Bluelab Pulse Multimedia EC/MC Meter
GH pH Up Liquid Gallon (4/Cs)
Bluelab Combo Plus Meter - Probe Included
GH pH 7.01 Calibration Solution Quart (12/Cs)