---
product_id: 647905679
title: "HANNA HI772-26 or HI755-26 Alkalinity Reagent Refill (25 Tests)"
brand: "hanna instruments"
price: "$41.48"
currency: USD
in_stock: true
reviews_count: 12
category: "Hanna Instruments"
url: https://www.desertcart.us/products/647905679-hanna-hi772-26-or-hi755-26-alkalinity-reagent-refill-25
store_origin: US
region: United States of America
---

# Expiration date & lot number for full traceability 25 precise tests per refill Compatible with both HI755 & HI772 checkers HANNA HI772-26 or HI755-26 Alkalinity Reagent Refill (25 Tests)

**Brand:** hanna instruments
**Price:** $41.48
**Availability:** ✅ In Stock

## Summary

> 🧬 Unlock Pro-Level Water Testing—Because Precision Can't Wait

## Quick Answers

- **What is this?** HANNA HI772-26 or HI755-26 Alkalinity Reagent Refill (25 Tests) by hanna instruments
- **How much does it cost?** $41.48 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/647905679-hanna-hi772-26-or-hi755-26-alkalinity-reagent-refill-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

- • **Compact & Convenient:** Small reagent size fits perfectly in any lab or field kit without bulk.
- • **Precision in Every Drop:** Delivers lab-grade accuracy with fixed wavelength LED tech for reliable alkalinity readings.
- • **Universal Compatibility:** Seamlessly works with both Hanna HI755 and HI772 checkers—no guesswork needed.
- • **Traceability You Can Trust:** Each vial marked with expiration and lot number ensures quality control and compliance.
- • **Effortless Testing Workflow:** Just Add, Insert, Read—simplified 4-step process saves time and reduces errors.

## Overview

The HANNA HI772-26 / HI755-26 Alkalinity Reagent Refill provides 25 high-purity chemical tests compatible with both Hanna HI755 and HI772 alkalinity checkers. Designed for professional-grade accuracy using fixed wavelength LED technology, it simplifies water quality testing with a quick 4-step process. Compact and traceable with expiration and lot numbers, this reagent refill is ideal for aquaculture, environmental monitoring, and educational use.

## Description

This reagent works with both the 755 & 772 Hanna checker. It may come with the tag 755-26 or 772-26, both reagents work with both checkers. Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results. Add, Insert, Read. Includes reagents for 25 x tests. The Hanna Marine Alkalinity Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Marine Alkalinity Checker uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit. Features at-a-glance: - Easier to use and more accurate than chemical test kits; - Dedicated to a single parameter; - Small size, big convenience; Ideal for: - Aquaculture; - Water Quality; - Environmental; - Education.

Review: As advertised - Very efficient and quick
Review: Good - Good

## Features

- pbThis reagent works with both the 755 & 772 Hanna checker. It may come with the tag 755-26 or 772-26, both reagents work with both checkers./b/p
- pbPre-made reagents for ease of use. Prepared with high purity chemicals./b/p
- pbMarked with expiration date and lot number for traceability./b/p
- pbSmall size and big convenience./b/p

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077RQ8Z61 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 25,325 in Pet Supplies ( See Top 100 in Pet Supplies ) 53 in Aquarium Test Kits |
| Customer Reviews | 4.5 4.5 out of 5 stars (837) |
| Date First Available | 21 Feb. 2018 |
| Global Trade Identification Number | 00860012631001 |
| Item Package Quantity | 1 |
| Item Weight | 68 g |
| Item model number | HI772-26 |
| Number of Pieces | 1 |
| Part number | HI 772-26 |
| Product Dimensions | 11.43 x 5.08 x 10.16 cm; 68 g |

## Product Details

- **Brand:** Hanna Instruments
- **Item volume:** 30 Millilitres
- **Item weight:** 0.07 Kilograms
- **Manufacturer:** Hanna Instruments SRL
- **Molecular weight:** 46.07

## Images

![HANNA HI772-26 or HI755-26 Alkalinity Reagent Refill (25 Tests) - Image 1](https://m.media-amazon.com/images/I/61LMZkS4CZL.jpg)

## Questions & Answers

**Q: does it come with checker**
A: Includes reagents for 25x tests.

**Q: Does it work for saltwater pool ?**
A: Yes

**Q: Does this come with the syringe?**
A: Comes with the syringe.

**Q: Does it come with the 10ml test bottle?**
A: Since this item is a refill kit, it doesn’t come with the 10 ml cuvette (bottle).  The complete alkalinity kit does come with the cuvette.  There are online vendors that sell these by themselves for approximately $5 each.  Bulk Reef Supply is one example of those vendors.

## Customer Reviews

### ⭐⭐⭐⭐⭐ As advertised
*by M***S on 7 October 2019*

Very efficient and quick

### ⭐⭐⭐⭐⭐ Good
*by B***H on 5 April 2020*

Good

### ⭐ Do not buy
*by K***R on 12 October 2024*

I ordered this on 4-01-24 came to use it in October only to notice it went out of date 01-2024!!! Should have checked it when I received it. Be warned.

## Frequently Bought Together

- HI772-26 HI755-26 Alkalinity Checker Reagent (25 Tests) - Hanna Instruments
- Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests)
- Hanna Calcium Reagents, 25 ct. for use with Hanna HI758 Marine Calcium Checker

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-21*