---
product_id: 293998212
title: "Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store"
brand: "hanna instruments"
price: "R2275"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Hanna Instruments"
url: https://www.desertcart.co.za/products/293998212-hanna-instruments-hi774-25-phosphate-ultra-low-range-checker-hc
store_origin: ZA
region: South Africa
---

# Expiration date & lot traceability Ultra low range detection 0.00-0.90 ppm 25 precision tests per pack Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store

**Brand:** hanna instruments
**Price:** R2275
**Availability:** ✅ In Stock

## Summary

> 🧪 Unlock ultra-precise phosphate insights before your competitors do!

## 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?** R2275 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/293998212-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

- • **Effortless Accuracy:** Pre-measured reagents eliminate guesswork for fast, reliable phosphate readings.
- • **Seamless Compatibility:** Specifically designed for Hanna Instruments HI774 Ultra Low Range Checker HC for flawless integration.
- • **Ultra-Sensitive Detection:** Detect phosphate levels as low as 0.00 ppm with precision you can trust.
- • **Pure Chemistry, Pure Results:** Formulated with high-purity chemicals to ensure consistent, lab-grade performance.
- • **Traceability You Can Count On:** Each reagent packet is marked with expiration and lot number for full quality control.

## Overview

The Hanna Instruments HI774-25 reagent pack includes 25 pre-measured, ultra-pure chemical tests designed for the HI774 Ultra Low Range Checker HC. It enables fast, accurate phosphate detection from 0.00 to 0.90 ppm using the Ascorbic Acid Method, with each packet traceable by expiration date and lot number for quality assurance.

## 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: Correct Replacements
Review: Constantly correct

## 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 |
| Brand | Hanna Instruments |
| Brand Name | Hanna Instruments |
| Container Type | Bag |
| Country Of Origin | USA |
| Customer Reviews | 4.8 out of 5 stars 366 Reviews |
| Global Trade Identification Number | 00860012631049 |
| Item Form | solid powder |
| Item Weight | 0.03 Kilograms |
| Manufacturer | Hanna Instruments |
| Package Information | Bag |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Hanna Instruments
- **Item Form:** solid powder
- **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)
![Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store - Image 2](https://m.media-amazon.com/images/I/61u4UPMTmrL.jpg)
![Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store - Image 3](https://m.media-amazon.com/images/I/51OxLxTtOeL.jpg)
![Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store - Image 4](https://m.media-amazon.com/images/I/51GeanJR42L.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

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



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



### ⭐⭐⭐⭐⭐ very good
*by J***R on 12 September 2025*



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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-10*