---
product_id: 21498863
title: "Allegro 2041-12K | Bitter (Denatonium Benzoate) Fit Test Solution | 6 Glass Ampules | OSHA Qualitative Respirator Fit Testing | for Dust & Mist Respirators | Made in USA"
brand: "allegro"
price: "€ 71.71"
currency: EUR
in_stock: true
reviews_count: 8
category: "Allegro"
url: https://www.desertcart.nl/products/21498863-allegro-2041-12k-bitter-denatonium-benzoate-fit-test-solution-6
store_origin: NL
region: Netherlands
---

# 6 ampules per pack Lightweight 0.317 oz each Made in USA quality Allegro 2041-12K | Bitter (Denatonium Benzoate) Fit Test Solution | 6 Glass Ampules | OSHA Qualitative Respirator Fit Testing | for Dust & Mist Respirators | Made in USA

**Brand:** allegro
**Price:** € 71.71
**Availability:** ✅ In Stock

## Summary

> 🧪 Test with confidence, stay ahead of safety standards!

## Quick Answers

- **What is this?** Allegro 2041-12K | Bitter (Denatonium Benzoate) Fit Test Solution | 6 Glass Ampules | OSHA Qualitative Respirator Fit Testing | for Dust & Mist Respirators | Made in USA by allegro
- **How much does it cost?** € 71.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/21498863-allegro-2041-12k-bitter-denatonium-benzoate-fit-test-solution-6)

## Best For

- allegro enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Portable:** 5x5x5 inch compact size fits seamlessly into any testing kit or workspace.
- • **Lightweight Design:** Each ampule weighs just 0.317 ounces, perfect for on-the-go testing without bulk.
- • **Bulk Pack Efficiency:** 6 ampules per box for consistent supply and uninterrupted testing routines.
- • **Precision Bitter Testing:** Ensure safety with reliable bitter test ampules trusted by professionals.
- • **Trusted American Craftsmanship:** Proudly made in the USA, guaranteeing quality and compliance.

## Overview

Allegro Industries 2041-12K Bitter Test Solution offers a pack of 6 compact, lightweight ampules designed for precise bitter testing. Made in the USA, this trusted solution ensures reliable safety checks in respiratory and industrial applications, combining portability with professional-grade quality.

## Description

Additional Bitter Test solution ampules (6/box).

Review: Works - Works great for testing.
Review: Fit teat - Easy to use

## Features

- Country Of Origin: United States
- Model Number: 2041‐12K
- Item Package Dimension: 9.0" L x 7.0" W x 7.0" H
- Item Package Weight: 1.0 lb

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00K0Y4GCE |
| Best Sellers Rank | #147,451 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #41 in Respirator Parts |
| Brand | ALLEGRO |
| Brand Name | ALLEGRO |
| Color | White |
| Customer Reviews | 4.4 out of 5 stars 133 Reviews |
| Included Components | 6 Bitter Test Solution ampules |
| Item Dimensions | 5 x 5 x 5 inches |
| Item dimensions L x W x H | 5 x 5 x 5 inches |
| Manufacturer | Allegro Industries |
| Measurement Type | Milliliters |
| Model | 2041‐12K |
| Power Source | Battery Powered |
| Style | Compact |
| Style Name | Compact |
| UPC | 741851204123 |
| Unit Count | 6.0 Count |

## Product Details

- **Brand:** ALLEGRO
- **Color:** White
- **Item dimensions L x W x H:** 5 x 5 x 5 inches
- **Power Source:** Battery Powered
- **Style:** Compact

## Images

![Allegro 2041-12K | Bitter (Denatonium Benzoate) Fit Test Solution | 6 Glass Ampules | OSHA Qualitative Respirator Fit Testing | for Dust & Mist Respirators | Made in USA - Image 1](https://m.media-amazon.com/images/I/51x7otbL0tL.jpg)

## Questions & Answers

**Q: Approximately how many tests can you do with this product?**
A: Every tube for 3-5 tests. There are 6 tubes in the  package.thanks

**Q: Can this be used to fit test N95 masks?**
A: Yes

**Q: What's the difference between this product, 12K, and their other product designated 11K?**
A: The saccharine and bitrix solutions both have a “fit test solution” and a “sensitivity solution”. I think 12k is for the fit test solution to be used during the actually fitting, and the 11k is the sensitivity solution used to determine a threshold before fitting.

**Q: What is difference between test vs sensitivity? And do I need a machine to spray it?**
A: Not sure what difference is, but they are designed for two parts of the test - sensitivity, w/o a respirator, and full test w/respirator.
You will need the atomizer to use these vials

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works
*by T***Y on June 11, 2024*

Works great for testing.

### ⭐⭐⭐⭐⭐ Fit teat
*by S***R on July 12, 2020*

Easy to use

### ⭐⭐⭐⭐⭐ Five Stars
*by L***N on March 19, 2018*

Quick delivery. As advertised.

---

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-17*