---
product_id: 138092753
title: "HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store"
brand: "hanna instruments"
price: "฿2814"
currency: THB
in_stock: true
reviews_count: 8
category: "Hanna Instruments"
url: https://www.desertcart.co.th/products/138092753-hi774-25-phosphate-ultra-low-range-checker-hc-reagents-25
store_origin: TH
region: Thailand
---

# Traceable expiration & lot Ultra low range sensitivity Pre-measured precision HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store

**Brand:** hanna instruments
**Price:** ฿2814
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay ahead with precision phosphate testing that never quits!

## Quick Answers

- **What is this?** HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store by hanna instruments
- **How much does it cost?** ฿2814 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/138092753-hi774-25-phosphate-ultra-low-range-checker-hc-reagents-25)

## 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 for consistent, reliable results.
- • **Effortless Accuracy:** Pre-made reagents ensure fast, foolproof testing every time.
- • **Ultra Low Detection:** Detect phosphate levels as low as 0.00 ppm with lab-grade precision.
- • **Plug & Play Convenience:** Simply add reagent packet to sample—no prep, no guesswork.
- • **Traceability Guaranteed:** Each packet marked with expiration date and lot number for full quality control.

## Overview

The Hanna Instruments HI774-25 reagent packets provide 25 pre-measured tests designed for ultra low range phosphate detection (0.00 to 0.90 ppm) using the Ascorbic Acid Method. Engineered with high-purity chemicals and marked for traceability, these reagents deliver fast, accurate, and consistent results when used with the Hanna Phosphate Ultra Low Range Checker HC.

## 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 - Exactly replacement for the packets that come with the Hanna testers.
Review: Constantly correct - Very consistent results. I never knew how well it worked.

## 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 | #6,388 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Analytical Reagents |
| Brand | Hanna Instruments |
| Brand Name | Hanna Instruments |
| Container Type | Bag |
| Customer Reviews | 4.8 out of 5 stars 379 Reviews |
| Global Trade Identification Number | 00860012631049 |
| Item Weight | 0.03 Kilograms |
| Manufacturer | Hanna Instruments |
| Package Information | Bag |
| 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

![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

### ⭐⭐⭐⭐⭐ 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.

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

good for test warter

## Frequently Bought Together

- Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store
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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-13*