

⚡ Stay ahead with ultra-precise phosphate testing — because every ppb counts!
The Hanna Instruments HI774-25 reagent packets provide 25 pre-measured, high-purity chemical tests designed for ultra-low phosphate detection (0.00 to 0.90 ppm) using the Ascorbic Acid Method. Each reagent is traceable with expiration and lot numbers, ensuring consistent, fast, and accurate phosphate measurements when paired with the HI774 Checker HC.
| ASIN | B07SN7NSHP |
| Best Sellers Rank | #9,204 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Analytical Reagents |
| Date First Available | June 3, 2019 |
| Item Weight | 1.13 ounces |
| Manufacturer | Hanna Instruments |
| Package Dimensions | 2.36 x 2.24 x 1.69 inches |
B**6
Correct Replacements
Exactly replacement for the packets that come with the Hanna testers.
J**R
very good
good for test warter
F**E
Good stuff
Easy to use and accurate , but kinda pricy
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.
Y**I
El reactivo funciona muy bien y mantiene la precisión que caracteriza a Hanna Instruments. Es confiable, fácil de usar y los resultados son consistentes, especialmente para quienes buscamos un control más exacto de los fosfatos en acuarios marinos. El único motivo por el que no le doy 5 estrellas es el precio, ya que considero que es un poco elevado para la cantidad de pruebas que incluye. Aun así, la calidad del producto es muy buena y cumple perfectamente su función. Lo recomiendo si priorizas precisión, aunque ojalá fuera un poco más accesible en costo.
F**D
Perfect replacement
Great replacement that still has plenty of time before they expire. Would recommend.
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.
A**S
Works best
Follow instructions exactly and it will work perfectly
Trustpilot
2 months ago
2 weeks ago