---
product_id: 343914063
title: "Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests)"
brand: "hanna instruments"
price: "$1.15"
currency: USD
in_stock: false
reviews_count: 13
category: "Hanna Instruments"
url: https://www.desertcart.us/products/343914063-hanna-instruments-hi782-25-marine-nitrate-high-range-checker-reagents
store_origin: US
region: United States of America
---

# Expiration & lot traceability Accurate marine nitrate range 0-75 ppm Pre-measured high purity reagents Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests)

**Brand:** hanna instruments
**Price:** $1.15
**Availability:** ❌ Out of Stock

## Summary

> 🌟 Stay ahead of marine health with lab-grade precision in every test!

## Quick Answers

- **What is this?** Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests) by hanna instruments
- **How much does it cost?** $1.15 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/343914063-hanna-instruments-hi782-25-marine-nitrate-high-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

- • **Marine-Grade Accuracy:** Optimized for saltwater samples with a high range of 0.0 to 75.0 ppm nitrate detection.
- • **Bulk Value for Consistency:** 25 tests per pack means reliable, ongoing monitoring without frequent reorders.
- • **Traceability You Can Trust:** Each reagent marked with expiration date and lot number for full quality control.
- • **Effortless Testing Workflow:** Simply add reagent, watch the color change, and get instant ppm nitrate readings.
- • **Precision-Engineered Reagents:** Pre-measured packets ensure fast, foolproof nitrate testing every time.

## Overview

The Hanna Instruments HI782-25 reagents are pre-measured, high purity chemical packets designed for use with the HI782 Marine Nitrate High Range Checker. They enable fast, accurate nitrate testing in saltwater environments, detecting nitrate levels from 0 to 75 ppm using the Zinc reduction method. Each reagent is traceable with expiration and lot numbers, and the pack includes 25 tests, making it ideal for consistent marine water quality monitoring.

## Description

The HI782-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Nitrate High Range Checker HC. These reagents follow the Zinc reduction method in which the reaction between nitrate and the reagent causes a pink tint in the sample. By simply adding the packet of HI782-25 reagent to the sample, the reaction will take place and the HI782 will determine the concentration from the color that is produced. The results will be displayed in ppm of nitrate (as NO3–). These reagents are designed to be used with saltwater samples that have an expected range of 0.0 to 75.0 ppm.FEATURESPre-made reagents for ease of usePrepared with high purity chemicalsMarked with expiration date and lot number for traceability

Review: Outstanding Performance and Accuracy - Essential for Marine Testing! - I recently started using the Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents, and I am thoroughly impressed with their performance. These reagents have proven to be an indispensable tool for monitoring nitrate levels in my marine environment. Exceptional Accuracy: The accuracy of these reagents is truly remarkable. Each test has provided consistent and reliable results, giving me confidence in the nitrate levels I'm measuring. This precision is crucial for maintaining a healthy marine environment and ensuring the well-being of aquatic life. Ease of Use: The instructions for using the reagents are clear and straightforward. I appreciate how user-friendly the process is, which allows me to get accurate readings without any hassle. The color chart included with the test kit is also very helpful, making it easy to interpret the results quickly. Long-Lasting Supply: With 25 tests included in the kit, it offers excellent value for the price. The quantity ensures that I can conduct numerous tests without needing to reorder frequently. This is especially beneficial for regular monitoring and maintaining optimal water quality. Consistent Quality: Hanna Instruments has a reputation for high-quality testing products, and these reagents are no exception. The high range capabilities are perfect for my needs, and I’ve found that the reagents deliver reliable results every time. The quality and performance have exceeded my expectations. Conclusion: The Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents are a top-notch product that delivers exceptional accuracy, ease of use, and long-lasting value. If you’re serious about monitoring nitrate levels in your marine setup, I highly recommend these reagents. They’ve made a significant difference in managing water quality and ensuring a healthy aquatic environment. This product definitely earns a 5-star rating!
Review: Always reliable. - Hanna is so reliable and accurate for monitoring many reef tank parameters. They have become a defacto standard for the aquarium industry.

## 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 | B098V2XKP6 |
| ASIN  | B098V2XKP6 |
| Best Sellers Rank | #8,457 in Pet Supplies ( See Top 100 in Pet Supplies ) #11 in Aquarium Test Kits |
| Brand Name | Hanna Instruments |
| Color | White |
| Customer Reviews | 4.8 4.8 out of 5 stars (547) |
| Date First Available | July 7, 2021 |
| Date First Available  | July 7, 2021 |
| Directions | Use the HI782-25 reagents with the HI782 Marine Nitrate High Range Checker, following the device's instructions, particularly the Zinc reduction method, for testing nitrate levels in saltwater samples. |
| Item Dimensions LxWxH | 2.32 x 2.28 x 1.65 inches |
| Item Package Dimensions L x W x H | 2.32 x 2.28 x 1.57 inches |
| Item Weight | 1.13 ounces |
| Item model number | HI782-25 |
| Item model number  | HI782-25 |
| Manufacturer | Hanna Instruments |
| Manufacturer  | Hanna Instruments |
| Material | Zinc |
| Product Dimensions  | 2.32 x 2.28 x 1.65 inches; 1.13 ounces |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** Hanna Instruments
- **Global Trade Identification Number:** 00198715292268
- **Item Form:** Powder
- **Manufacturer:** Hanna Instruments

## Images

![Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests) - Image 1](https://m.media-amazon.com/images/I/512l5veYmYL.jpg)

## Questions & Answers

**Q: I ordered this and the regent powder is clumpy. Has anyone run into this problem? I'm concerned the test reading can be inaccurate because of this.**
A: My recent order was also clumpy and brownish in color.  My reading does not appear accurate.  Has anyone else verified?

**Q: Does this include the liquid h1781a-0?**
A: Don’t think so

## Customer Reviews

### ⭐⭐⭐⭐⭐ Outstanding Performance and Accuracy - Essential for Marine Testing!
*by S***I on August 14, 2024*

I recently started using the Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents, and I am thoroughly impressed with their performance. These reagents have proven to be an indispensable tool for monitoring nitrate levels in my marine environment. Exceptional Accuracy: The accuracy of these reagents is truly remarkable. Each test has provided consistent and reliable results, giving me confidence in the nitrate levels I'm measuring. This precision is crucial for maintaining a healthy marine environment and ensuring the well-being of aquatic life. Ease of Use: The instructions for using the reagents are clear and straightforward. I appreciate how user-friendly the process is, which allows me to get accurate readings without any hassle. The color chart included with the test kit is also very helpful, making it easy to interpret the results quickly. Long-Lasting Supply: With 25 tests included in the kit, it offers excellent value for the price. The quantity ensures that I can conduct numerous tests without needing to reorder frequently. This is especially beneficial for regular monitoring and maintaining optimal water quality. Consistent Quality: Hanna Instruments has a reputation for high-quality testing products, and these reagents are no exception. The high range capabilities are perfect for my needs, and I’ve found that the reagents deliver reliable results every time. The quality and performance have exceeded my expectations. Conclusion: The Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents are a top-notch product that delivers exceptional accuracy, ease of use, and long-lasting value. If you’re serious about monitoring nitrate levels in your marine setup, I highly recommend these reagents. They’ve made a significant difference in managing water quality and ensuring a healthy aquatic environment. This product definitely earns a 5-star rating!

### ⭐⭐⭐⭐⭐ Always reliable.
*by R***H on January 31, 2025*

Hanna is so reliable and accurate for monitoring many reef tank parameters. They have become a defacto standard for the aquarium industry.

### ⭐⭐⭐⭐⭐ Review
*by M***L on November 1, 2025*

Buen precio

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-05*