Hanna Instruments recently discovered that there is an issue with some of the HI755-26 alkalinity reagent kits, and our records show that you may be affected. Even if you have had no problems with your tests and sampling at this time, please take a moment to check to see if the possibility is there.
2. Type in your reagents “Lot” number. If your reagent is from a batch that may be or eventually can have erroneous readings, it will be replaced free of charge directly by Hanna. All you will need to provide is shipping address and proof of purchase. Hanna also offers a 5% off coupon in their store for those affected.