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Your cart is empty.The HI774-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Phosphate Ultra Low Range Checker HC. These reagents follow the Ascorbic Acid Method in which the reaction between phosphorus and reagents causes a blue tint in the sample. By simply adding the packet of HI774-25 reagent to the sample, the reaction will take place and the HI774 will determine the concentration from the color that is produced. The results will be displayed in ppb of phosphorus. These reagents are designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate.
flyingnoddle
Reviewed in the United States on January 26, 2025
Easy to use and accurate , but kinda pricy
Dana Lofton
Reviewed in the United States on February 10, 2024
Follow instructions exactly and it will work perfectly
Sophiela35
Reviewed in the United States on July 9, 2023
Not too sure how this works. My husband ordered it, but he didn’t complain so it was good for our fish tank.
Bonnie Brown
Reviewed in the United States on July 2, 2023
Dosing phosphates in my reef tank, I want to know that I'm not overdosing or under dosing. The Hanna checker is easy and the results with these reagents are consistent and accurate.
Customer
Reviewed in the United States on March 16, 2023
Fast shipping and good quality
Michael waddell
Reviewed in the United States on December 5, 2023
Good product, just what I needed to test.
Firedad
Reviewed in the United States on December 13, 2023
Great replacement that still has plenty of time before they expire. Would recommend.
Hunter Allen
Reviewed in the United States on July 10, 2021
Not quite as accurate on the lowest end, which is where I typically want to measure.
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