---
product_id: 631455358
title: "Hanna Instruments Calcium Reagents, 25 ct. for use with HI758 Marine Calcium Checker"
brand: "hanna instruments"
price: "$113.70"
currency: USD
in_stock: true
reviews_count: 5
category: "Hanna Instruments"
url: https://www.desertcart.us/products/631455358-hanna-instruments-calcium-reagents-25-ct-for-use-with-hi758
store_origin: US
region: United States of America
---

# Optimized for marine calcium levels 25 precise reagent tests Seamless compatibility with HI758 Checker Hanna Instruments Calcium Reagents, 25 ct. for use with HI758 Marine Calcium Checker

**Brand:** hanna instruments
**Price:** $113.70
**Availability:** ✅ In Stock

## Summary

> 🌊 Precision meets performance for your marine calcium needs!

## Quick Answers

- **What is this?** Hanna Instruments Calcium Reagents, 25 ct. for use with HI758 Marine Calcium Checker by hanna instruments
- **How much does it cost?** $113.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/631455358-hanna-instruments-calcium-reagents-25-ct-for-use-with-hi758)

## 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

- • **Bulk Pack Convenience:** 25-count reagent pack means fewer replacements and more uninterrupted monitoring.
- • **Tailored for HI758 Checker:** Designed exclusively for seamless integration with the Hanna HI758 Marine Calcium Checker for flawless results.
- • **Consistent Lab-Grade Precision:** Experience professional-grade accuracy every time you test, eliminating guesswork.
- • **Accurate Marine Calcium Testing:** Ensure your aquatic environment stays perfectly balanced with 25 reliable reagent tests.
- • **Essential for Marine Enthusiasts:** Join a community of savvy marine managers who trust Hanna for crystal-clear calcium insights.

## Overview

Hanna Instruments Calcium Reagents come in a 25-count pack, specifically formulated for use with the HI758 Marine Calcium Checker, delivering consistent, accurate calcium level testing essential for maintaining healthy marine environments.

## Description

Hanna Calcium Reagents, 25 ct. for use with Hanna HI758 Marine Calcium Checker

Review: These replacement reagents are a necessity if you plan to keep using your Hanna tester. Best price I could find on the internet. Does not come with the digital tester or test tubes - this is just the replacement reagent. The one I received had an expiration date 18 months from now which is way longer than I need but great for people who only have one tank or who test less frequently.
Review: Works great will buy again

## Features

- Brand: Hanna instruments

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C2GWK30 |
| Brand Name | Hanna Instruments |
| Customer Reviews | 4.7 4.7 out of 5 stars (122) |
| Item Weight | 0.08 Kilograms |
| Manufacturer | Hanna Instruments |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Hanna Instruments
- **Item weight:** 0.08 Kilograms
- **Manufacturer:** Hanna Instruments

## Images

![Hanna Instruments Calcium Reagents, 25 ct. for use with HI758 Marine Calcium Checker - Image 1](https://m.media-amazon.com/images/I/31sJA8CbYgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***R on 24 February 2026*

These replacement reagents are a necessity if you plan to keep using your Hanna tester. Best price I could find on the internet. Does not come with the digital tester or test tubes - this is just the replacement reagent. The one I received had an expiration date 18 months from now which is way longer than I need but great for people who only have one tank or who test less frequently.

### ⭐⭐⭐⭐⭐ Review
*by R***A on 1 April 2026*

Works great will buy again

### ⭐⭐⭐⭐⭐ Review
*by D***S on 20 February 2025*

I keep up with the testing of my tank and Hanna checkers is what I use and always need to refill at a affordable price

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-20*