---
product_id: 61209107
title: "CHEMetrics R-7540 CHEMets Dissolved Oxygen Refill, Rhodazine D, 30 Ampoules"
brand: "chemetrics"
price: "491.51 DT"
currency: TND
in_stock: true
category: "Chemetrics"
url: https://www.desertcart.tn/products/61209107-chemetrics-r-7540-chemets-dissolved-oxygen-refill-rhodazine-d-30
store_origin: TN
region: Tunisia
---

# 7 mm OD glass ampoules for accuracy 30 sealed ampoules for precision Made in the USA for trusted quality CHEMetrics R-7540 CHEMets Dissolved Oxygen Refill, Rhodazine D, 30 Ampoules

**Brand:** chemetrics
**Price:** 491.51 DT
**Availability:** ✅ In Stock

## Summary

> 🧪 Stay ahead in water analysis with precision-packed ampoules!

## Quick Answers

- **What is this?** CHEMetrics R-7540 CHEMets Dissolved Oxygen Refill, Rhodazine D, 30 Ampoules by chemetrics
- **How much does it cost?** 491.51 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/61209107-chemetrics-r-7540-chemets-dissolved-oxygen-refill-rhodazine-d-30)

## Best For

- chemetrics enthusiasts

## Why This Product

- Trusted chemetrics brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Convenient:** Slim 2.9 x 8.6 x 10.9 cm packaging fits effortlessly into any lab or field kit.
- • **Precision in Every Drop:** Each ampoule contains 0.5 mL of reagent sealed under vacuum for reliable dissolved oxygen testing.
- • **Bulk Supply, Zero Downtime:** 30 ampoules per refill ensure you’re always ready for continuous water quality monitoring.
- • **Visual Colorimetric Clarity:** Sealed glass ampoules provide clear, easy-to-read color changes for quick, confident analysis.
- • **Trusted American Craftsmanship:** Manufactured in the USA, guaranteeing consistent quality and performance.

## Overview

The CHEMetrics R-7540 CHEMets Dissolved Oxygen Refill offers 30 vacuum-sealed 7 mm glass ampoules, each containing 0.5 mL of Rhodazine D reagent. Designed for precise visual colorimetric water analysis, this compact refill pack is made in the USA and ensures reliable, continuous dissolved oxygen testing for professional water purification and scientific applications.

## Description

Sealed glass ampoules, 7 mm OD, for visual colorimetric water analysis. Each CHEMet ampoule contains approximately 0.5 mL of liquid reagent sealed under vacuum. Refills contain 30 ampoules, test kits contain 1 refill.

## Features

- Package Dimensions: 2.9 L x 10.9 H x 8.6 W (centimeters)
- Package Weight : 1 pounds
- Country of Origin : United States
- Part number: R-7540

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01622NFO2 |
| Best Sellers Rank | #632,676 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #299 in Water Purification System Accessories |
| Brand Name | Chemetrics |
| Customer Reviews | 3.2 3.2 out of 5 stars (3) |
| Manufacturer | CHEMetrics, Inc. |
| Model Number | R-7540 |
| Part Number | R-7540 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Chemetrics
- **Manufacturer:** CHEMetrics, Inc.
- **Unit Count:** 1.0 Count

## Images

![CHEMetrics R-7540 CHEMets Dissolved Oxygen Refill, Rhodazine D, 30 Ampoules - Image 1](https://m.media-amazon.com/images/I/61k7v4naoPL.jpg)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-19*