---
product_id: 138092753
title: "Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store"
brand: "hanna instruments"
price: "189.74 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "Hanna Instruments"
url: https://www.desertcart.tn/products/138092753-hanna-instruments-hi774-25-phosphate-ultra-low-range-checker-hc
store_origin: TN
region: Tunisia
---

# Expiration & lot traceability Ultra low range phosphate detection 25 precision reagent tests Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store

**Brand:** hanna instruments
**Price:** 189.74 DT
**Availability:** ✅ In Stock

## Summary

> 🧪 Stay ahead with precision—never miss a phosphate beat!

## Quick Answers

- **What is this?** Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store by hanna instruments
- **How much does it cost?** 189.74 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/138092753-hanna-instruments-hi774-25-phosphate-ultra-low-range-checker-hc)

## Best For

- hanna instruments enthusiasts

## Why This Product

- Trusted hanna instruments brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pure Chemistry:** Formulated with high purity chemicals to ensure consistent, interference-free results.
- • **Traceable Quality:** Each reagent packet is marked with expiration date and lot number for full accountability.
- • **Effortless Accuracy:** Pre-measured reagents eliminate guesswork for fast, reliable phosphate readings.
- • **Ultra Low Detection:** Detect phosphate levels as low as 0.00 ppm up to 0.90 ppm with lab-grade precision.
- • **Seamless Compatibility:** Perfectly designed to work with Hanna Instruments HI774 Ultra Low Range Checker HC.

## Overview

The Hanna Instruments HI774-25 reagent packets provide 25 pre-measured tests for ultra low range phosphate detection (0.00 to 0.90 ppm) using the Ascorbic Acid Method. Designed for fast, accurate, and traceable results, these high purity chemical reagents are optimized for use with the HI774 Checker HC, ensuring professional-grade water quality analysis with minimal effort.

## Description

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.FEATURESPre-made reagents for ease of usePrepared with high purity chemicalsMarked with expiration date and lot number for traceability

Review: Test every few days. - I got all of the Hanna testers. No need to try to determine colors.
Review: Correct Replacements - Exactly replacement for the packets that come with the Hanna testers.

## Features

- Pre-made reagents for ease of use
- Prepared with high purity chemicals
- Marked with expiration date and lot number for traceability

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07SN7NSHP |
| Best Sellers Rank | #10,725 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Analytical Reagents |
| Brand | Hanna Instruments |
| Brand Name | Hanna Instruments |
| Container Type | Bag |
| Customer Reviews | 4.8 out of 5 stars 409 Reviews |
| Global Trade Identification Number | 00860012631049 |
| Manufacturer | Hanna Instruments |
| Model Number | HI774-25 |
| Package Information | Bag |
| Part Number | HI774-25 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Hanna Instruments
- **Global Trade Identification Number:** 00860012631049
- **Item Weight:** 0.03 Kilograms
- **Manufacturer:** Hanna Instruments
- **Package Information:** Bag

## Images

![Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store - Image 1](https://m.media-amazon.com/images/I/41l36La1ipL.jpg)

## Questions & Answers

**Q: it says expiration date 5/2021 , are they still usable?**
A: Probably, they are dry reagents.
I would suggest ordering a new batch, comparing tests, and then decide.

**Q: The photo shows an expired reagent. This are not expired are they?**
A: No there not expired.

**Q: So just to confirm hi774 is the same as hi736?**
A: Hello hi774 is NOT the same as hi736.
HI774-25 is designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate.
HI736-25 is designed to be used with samples that have an expected range of 0 to 200 ppb phosphorus.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Test every few days.
*by D***G on April 1, 2026*

I got all of the Hanna testers. No need to try to determine colors.

### ⭐⭐⭐⭐⭐ Correct Replacements
*by B***6 on September 25, 2025*

Exactly replacement for the packets that come with the Hanna testers.

### ⭐⭐⭐⭐⭐ Constantly correct
*by P***E on March 3, 2026*

Very consistent results. I never knew how well it worked.

## Frequently Bought Together

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-09*