Essential for calibrating pH meters in aquariums (freshwater

FDA-Approved - Food-safe citric acid formula

Other Contaminants — VOCs and other chemical contaminants present in municipal water supplies

or harsh chemicals

Milwaukee MI412 Low Range Phosphate PRO Photometer Milwaukee Instruments MW302 Essential for calibrating pH metersLab Grade, Easy to Use, High Performance. Milwaukee MI412 PRO Photometer is for users demanding fast, reliable, repeatable results with ease of use. Description The Milwaukee MI412 PRO Photometer features manual zero point calibration and fast operation in a rugged design. The Milwaukee PRO Photometer is ideal for users in aquariums, aquaculture & coral, food, and water treatment applications. This meter is also ideal for educators that want their