---
product_id: 741232715
title: "HANNA HI 774-25 Phosphate Ultra Low Range Checker Reagents (25 Tests)"
brand: "hanna instruments"
price: "S$49"
currency: SGD
in_stock: true
category: "Hanna Instruments"
url: https://www.desertcart.sg/products/741232715-hanna-hi-774-25-phosphate-ultra-low-range-checker-reagents
store_origin: SG
region: Singapore
---

# Ultra low phosphate range 0.00-0.90 ppm Expiration & lot traceability 25 precision pre-measured tests HANNA HI 774-25 Phosphate Ultra Low Range Checker Reagents (25 Tests)

**Brand:** hanna instruments
**Price:** S$49
**Availability:** ✅ In Stock

## Summary

> 🧬 Unlock pristine water clarity with precision you can trust!

## 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?** S$49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/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

- • **Trusted Brand:** Hanna Instruments’ USA-made reagents backed by 4.8-star reviews and industry expertise.
- • **Traceable Quality:** Each packet marked with expiration date and lot number ensures consistent, trustworthy results.
- • **Effortless Accuracy:** Pre-measured reagents eliminate guesswork for fast, reliable phosphate readings.
- • **Ultra-Low Sensitivity:** Detect phosphate levels as low as 0.00 ppm, perfect for pristine aquariums and sensitive environments.
- • **Versatile Application:** Ideal for aquariums, aquaculture, environmental monitoring, and water quality testing.

## Overview

The HANNA HI 774-25 reagent packets provide 25 pre-measured tests designed for ultra-low phosphate detection (0.00 to 0.90 ppm) using the Ascorbic Acid Method. Made in the USA with high purity chemicals, each reagent is marked for expiration and lot traceability, ensuring reliable and fast phosphate measurements ideal for aquariums, 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.

## 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 | #7,271 in Pet Supplies ( See Top 100 in Pet Supplies ) #268 in Aquarium Accessories |
| Brand Name | Hanna Instruments |
| Country of Origin | USA |
| Customer Reviews | 4.8 4.8 out of 5 stars (422) |
| Global Trade Identification Number | 00860012631049 |
| Manufacturer | Hanna Instruments |
| Model Number | HI774-25 |
| Part Number | HI774-25 |

## Product Details

- **Brand:** Hanna Instruments
- **Global Trade Identification Number:** 00860012631049
- **Manufacturer:** Hanna Instruments

## 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.

## Frequently Bought Together

- Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store
- Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests)
- HI772-26 HI755-26 Alkalinity Checker Reagent (25 Tests) - Hanna Instruments

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-10-05*