




🧪 Unlock ultra-precise phosphate insights with every test!
The Hanna Instruments HI774-25 reagent pack includes 25 pre-measured, ultra-low range phosphate test reagents designed for use with the Phosphate Ultra Low Range Checker HC. Utilizing the Ascorbic Acid Method, it delivers fast, accurate phosphate readings from 0.00 to 0.90 ppm with clear colorimetric results. Each reagent is marked with expiration and lot information, ensuring traceability and lab-grade purity for dependable water quality analysis.
F**E
Good stuff
Easy to use and accurate , but kinda pricy
B**N
Helps me know!
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.
D**N
Works best
Follow instructions exactly and it will work perfectly
F**D
Perfect replacement
Great replacement that still has plenty of time before they expire. Would recommend.
S**5
Good
Not too sure how this works. My husband ordered it, but he didn’t complain so it was good for our fish tank.
H**N
Convenient Checker
Not quite as accurate on the lowest end, which is where I typically want to measure.
M**L
Good
Good product, just what I needed to test.
A**R
Good quality items
Fast shipping and good quality
Trustpilot
2 days ago
1 week ago