Hanna HI7040L Zero Oxygen Solution 500ml

HI-7040L is a high quality, bi-component zero oxygen solution made from reagent grade chemicals. Hanna dissolved oxygen solutions have the lot number and expiry 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