Bluelab pH 4.0 Calibration Solution – 250 ml / 8.4 fl oz aquarium iodine test delivering consistent scale prevention and

delivering consistent scale prevention and removal without the environmental impact

place the CLEAR plastic cap (supplied with probe) over the membrane

Laboratory water filtration monitoring

Model Number: 1-41500-W

Bluelab pH 4.0 Calibration Solution – 250 ml / 8.4 fl oz aquarium iodine test delivering consistent scale prevention andpH 4. 0 calibration solution a must in every grower's toolbox Contains 1 bottle 250 ml 8. 4 fl oz Boost your pH products longevity with regular cleaning and calibration Bluelab pH 4. 0 Calibration Solution ensures accurate pH meter readings with lab grade precision. This 250 ml bottle delivers consistent calibration for refractometers, pH meters, and water quality testing equipment. Essential for maintaining measurement accuracy in hydroponic systems,