Hanna Instruments Zero Oxygen Solution Set (500 mL) jam making the system bonds to hard

the system bonds to hard water minerals (Calcium and Magnesium) as water enters your heater

accurate readings in challenging environments

Pool & spa water testing

called CitraCharge®

filter housing recyclable at home

Hanna Instruments Zero Oxygen Solution Set (500 mL) jam making the system bonds to hardHI7040L is a high quality, bicomponent zero oxygen solution made from reagent grade chemicals. Hanna dissolved oxygen solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution. Prepared with reagent grade chemicals Hassle free, easy to mix chemical component bottles Air tight seal to ensure the quality of the solution HI7040L is a bicomponent zero