---
product_id: 741232715
title: "HANNA HI 774-25 Phosphate Ultra Low Range Checker Reagents (25 Tests)"
brand: "hanna instruments"
price: "€ 32.91"
currency: EUR
in_stock: true
reviews_count: 5
category: "Hanna Instruments"
url: https://www.desertcart.ie/products/741232715-hanna-hi-774-25-phosphate-ultra-low-range-checker-reagents
store_origin: IE
region: Ireland
---

# clear expiration & lot tracking ultra low phosphate range 0.00-0.90 ppm 25 precision reagent tests HANNA HI 774-25 Phosphate Ultra Low Range Checker Reagents (25 Tests)

**Brand:** hanna instruments
**Price:** € 32.91
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of water quality with precision you can count on!

## Quick Answers

- **What is this?** HANNA HI 774-25 Phosphate Ultra Low Range Checker Reagents (25 Tests) by hanna instruments
- **How much does it cost?** € 32.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/741232715-hanna-hi-774-25-phosphate-ultra-low-range-checker-reagents)

## 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 ensure fast, reliable phosphate readings every time.
- • **Versatile Application:** Ideal for aquariums, aquaculture, environmental studies, and water quality management.
- • **Plug & Play Compatibility:** Designed specifically for Hanna Phosphate Ultra Low Range Checker HC for seamless testing.
- • **Traceability You Can Trust:** Each packet is marked with expiration date and lot number for full quality control.
- • **Ultra Low Range Sensitivity:** Detect phosphate levels as low as 0.00 ppm, perfect for pristine water monitoring.

## Overview

The HANNA HI 774-25 reagent packets provide 25 pre-measured tests for ultra low phosphate detection (0.00-0.90 ppm) using the Ascorbic Acid Method. Designed for use with the Hanna Phosphate Ultra Low Range Checker HC, these high-purity reagents come with expiration and lot number markings to ensure traceability and reliability, making them essential for aquarium, aquaculture, and environmental water quality monitoring.

## 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.

Review: Exactly replacement for the packets that come with the Hanna testers.
Review: good for test warter

## Features

- Pre-made reagents for ease of use
- Prepared with high purity chemicals
- Marked with expiration date and lot number for traceability
- Ideal for: Aquariums, Environmental, Aquaculture, Water Quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07SN7NSHP |
| Best Sellers Rank | #16,801 in Pet Supplies ( See Top 100 in Pet Supplies ) #882 in Aquarium Accessories |
| Manufacturer | Hanna |
| Manufacturer reference | HI774-25 |
| Package Dimensions | 5.99 x 5.69 x 4.29 cm; 32 g |

## Product Details

- **Brand:** Hanna Instruments
- **Global Trade Identification Number:** 00860012631049
- **Item weight:** 0.03 Kilograms
- **Manufacturer:** Hanna

## Images

![HANNA HI 774-25 Phosphate Ultra Low Range Checker Reagents (25 Tests) - 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

### ⭐⭐⭐⭐⭐ Review
*by B***6 on 25 September 2025*

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

### ⭐⭐⭐⭐⭐ Review
*by J***R on 12 September 2025*

good for test warter

### ⭐⭐⭐⭐⭐ Review
*by F***E on 26 January 2025*

Easy to use and accurate , but kinda pricy

## Frequently Bought Together

- Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store
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- HI772-26 HI755-26 Alkalinity Checker Reagent (25 Tests) - Hanna Instruments

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-26*