Hanna HI719 Magnesium Checker | Freshwater Digital Colorimeter 0-2 mg/L PPCB filter Comes in lengths of 50

Comes in lengths of 50 feet with an outer dimension of 1/4 inch

the Power Stick ensures you always have access to mineralized alkaline water

restricting water flow

Lightweight and portable (0

✔ 360° D-Rings for maximum attachment flexibility

Hanna HI719 Magnesium Checker | Freshwater Digital Colorimeter 0-2 mg/L PPCB filter Comes in lengths of 50Professional Freshwater Magnesium Hardness Colorimeter for Aquariums & Aquaculture The Hanna HI719 Checker HC is a portable, professional grade freshwater magnesium hardness colorimeter designed for accurate magnesium (Mg) measurement from 0. 00 to 2. 00 mg L in freshwater aquariums, aquaculture, and water quality applications. This handheld photometer delivers lab quality results in the field with simple operationjust add reagent, insert the cuvette,