Hanna Phosphate Reagents, 25 ct. for use with Hanna HI713 Phosphate Checker

The product works with its stipulated margin or wrror . You should be aware if you want to have a more accurate reading at .05 this product will not give you the right results as its margin of error can show you a 0 , use the phosphorus checker instead (Posted on 10/3/2018)

great buy (Posted on 12/31/2017)

great buy (Posted on 5/26/2017)

These are always handy. They seem to go fast when you do tests every other day, when your trying to get your phosphates down. Always very accutate every time. (Posted on 7/21/2015)

Unfortunately its a powder and not a easy to use liquid. It works but the packet makes it difficult to get all the powder out. I tear the packet open and the shake the powder onto a business card. Using a business card as a funnel it makes it easier to pour the powder into the vial. (Posted on 3/24/2015)

Unfortunately it a powder and not a easy to use liquid. It works but the packet makes it difficult to get all the powder out. The tear the packet open and pour the shake the powder onto a business card. Using a business card as a funnel for the powder it makes it easier to pour into the vial. (Posted on 3/24/2015)