---
product_id: 412132374
title: "Black Swan Mfg. Co. 20° Muriatic Acid (Quart)"
brand: "black swan"
price: "327.14 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Black Swan"
url: https://www.desertcart.tn/products/412132374-black-swan-mfg-co-20-muriatic-acid-quart
store_origin: TN
region: Tunisia
---

# removes rust & hard water stains 28% hydrochloric acid strength etches concrete & cleans masonry Black Swan Mfg. Co. 20° Muriatic Acid (Quart)

**Brand:** black swan
**Price:** 327.14 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Transform surfaces with pro-grade power — don’t let stains hold you back!

## Quick Answers

- **What is this?** Black Swan Mfg. Co. 20° Muriatic Acid (Quart) by black swan
- **How much does it cost?** 327.14 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/412132374-black-swan-mfg-co-20-muriatic-acid-quart)

## Best For

- black swan enthusiasts

## Why This Product

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

## Key Features

- • **Rust & Stain Eraser:** Effortlessly removes rust from metal and hard water stains from fixtures.
- • **Concrete & Masonry Prep Pro:** Perfectly etches floors and walls for flawless paint adhesion.
- • **Versatile Cleaning Solution:** Ideal for toilets, bricks, cement, and pool pH adjustment.
- • **Trusted by Pros & Homeowners:** Highly rated with 4.6 stars and proven results on tough stains.
- • **Powerful 28% Hydrochloric Acid:** Industrial-grade strength for deep cleaning and etching.

## Overview

Black Swan Mfg. Co. 20° Muriatic Acid is a potent 28% hydrochloric acid solution designed for heavy-duty cleaning and surface preparation. It etches concrete and masonry for superior paint adhesion, removes rust and hard water stains from toilets and metal, and can adjust pool pH. Trusted by professionals and homeowners alike, this 32 fl oz bottle delivers industrial strength cleaning with proven effectiveness.

## Description

Black Swan’s MURIATIC ACID is 28% hydrochloric acid, 18° Baume. It can be used to etch concrete floors and walls prior to painting, cleaning brick and cement, removing rust stains from toilet fixtures, removing rust from metal, and adjusting the pH of swimming pools. This product contains no inhibitors and will attack metal after rust is removed. To neutralize this acid action on the metal, make a solution of water and heavy duty detergent and rinse thoroughly. Then follow with plenty of water.

Review: Removes hard water stains on black stone sink. - This is the second time I have bought this. The only thing I have found that gets rid of hard water stains on my black quartz sink.
Review: This stuff works! - Had an old toilet that had a thick Calcium build up on the bottom of the bowl. This stuff removed it and made it look new again. A definite thumbs from me 👍

## Features

- 28&37; hydrochloric acid&44; 10 degrees baume
- It can be used to etch concrete floors and walls prior to painting
- Can clean brick and cement
- Removes rust stains from toilet fixtures
- Removes rust from metal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008LV2GNO |
| Best Sellers Rank | #92,891 in Health ( See Top 100 in Health ) #657 in Household Floor Cleaning Products |
| Brand | Black Swan |
| Brand Name | Black Swan |
| Container Type | Bottle |
| Contains Liquid Contents? | No |
| Customer Reviews | 4.6 out of 5 stars 241 Reviews |
| Item Form | Liquid |
| Item Volume | 32 Fluid Ounces |
| Item Weight | 0.01 Ounces |
| Item form | Liquid |
| Item volume | 32 Fluid Ounces |
| Manufacturer | Black Swan Mfg. Co. |
| Model Number | 09017 |
| Number of Items | 1 |
| Part Number | 139201776 |
| Specific Uses For Product | Toilet |
| Specific uses for product | Toilet |
| Surface Recommendation | toilet |
| Surface recommendation | toilet |
| UPC | 054647090177 |

## Product Details

- **Brand:** Black Swan
- **Item form:** Liquid
- **Item volume:** 32 Fluid Ounces
- **Specific uses for product:** Toilet
- **Surface recommendation:** toilet

## Images

![Black Swan Mfg. Co. 20° Muriatic Acid (Quart) - Image 1](https://m.media-amazon.com/images/I/71Y8IHZnDbL.jpg)

## Questions & Answers

**Q: Can this be used to clean a salt pool pump ?**
A: We do not recommend that this product be used to clean a salt pool pump. It may damage the pump.

**Q: Will this remove rust stains on a concrete driveway?**
A: Hello. Yes, this product should be able remove the rust stains.

**Q: Will this remove cat urine odor from ceramic tile and grout?**
A: NO it will damaged the ceramic tile.

**Q: How would you apply to a gravestone to remove black stains?**
A: You should be able to mix 1 part of the product with 10 parts water. If this does not work, you can try making the solution a little stronger. Be very careful when using this product. Please make sure to read the directions and cautions on the label.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Removes hard water stains on black stone sink.
*by D***E on 2 May 2026*

This is the second time I have bought this. The only thing I have found that gets rid of hard water stains on my black quartz sink.

### ⭐⭐⭐⭐⭐ This stuff works!
*by D***R on 17 February 2026*

Had an old toilet that had a thick Calcium build up on the bottom of the bowl. This stuff removed it and made it look new again. A definite thumbs from me 👍

### ⭐⭐⭐⭐⭐ Will definitely buy again this was perfect
*by C***S on 22 April 2026*

Very professional packaging and handling this product was not just slapped in the box, it was takin care of properly, i strongly advise gloves and a gas mask when using, very very strong toxic vapors come off this product. This product should not be takin lightly and if you get this on your skin it will cause seriously dangerous chemical burns if you get any in your eyes you will go blind, STRONGLY RECOMMEND PROPER HANDLING EDUCATION AND PROPER DISPOSAL ALSO PPE and definitely educate yourself on these strong acids and basics before you just buy one and get to splashin around this very powerful CONCENTRATED solution. WITH ALL THAT SAID THE PRODUCT IS GREAT.

## Frequently Bought Together

- Black Swan 09017 20%-Muriatic Acid, 28%-Hydrochloric acid, 20°-Baume - Used to etch concrete floors and walls prior to painting, cleaning brick and cement, removing rust stains from toilet fixtures
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-01*