Hydroponics Calibration Solution Test Kit pH 4.0, 7.0 & 10.0 - For Precise pH Indicator For Food Processing, Aquariums, Pools - Calibrate pH Meters & Use With pH Probe - Pack of 3 (4oz Bottles)
PH CALIBRATION SOLUTION: Calibration Solution Kit is designed to accurately calibrate and testing equipment for pools, general hydroponics, food processing, home aquariums, industrial processing equipment and pharmaceutical manufacturing, water and more quickly with your pH tester/meter. Ideal for testing pH balance of drinking water, pool, aquarium, RO system, spa or hydroponics.QUALITY AND STABILITY: Atlas Scientific's pH test kit Standardized against ...