---
product_id: 38077529
title: "Sulfamic Acid Crystals - 4 lb"
brand: "aqua mix"
price: "26.90 OMR"
currency: OMR
in_stock: true
reviews_count: 8
category: "Aqua Mix"
url: https://www.desertcart.com.om/products/38077529-sulfamic-acid-crystals-4-lb
store_origin: OM
region: Oman
---

# Fast-dissolving crystal formula Powerful sulfamic acid stain remover Safe on granite, slate & porcelain Sulfamic Acid Crystals - 4 lb

**Brand:** aqua mix
**Price:** 26.90 OMR
**Availability:** ✅ In Stock

## Summary

> 💥 Crush stains like a pro with Aqua Mix Sulfamic Acid Crystals!

## Quick Answers

- **What is this?** Sulfamic Acid Crystals - 4 lb by aqua mix
- **How much does it cost?** 26.90 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/38077529-sulfamic-acid-crystals-4-lb)

## Best For

- aqua mix enthusiasts

## Why This Product

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

## Key Features

- • **Professional-Grade Formula:** Trusted by experts for tough industrial and home cleaning tasks
- • **Effortless Stain Eradication:** Dissolves quickly in water for instant cleaning power
- • **Compact & Convenient 4 lb Pack:** Ideal size for both contractors and DIY pros to keep on hand
- • **Heavy-Duty Grout & Rust Removal:** Eliminates cured grout haze, rust, mineral deposits, and efflorescence
- • **Versatile Surface Compatibility:** Perfect for granite, slate, ceramic, porcelain, and quarry tiles

## Overview

Aqua Mix Sulfamic Acid Crystals deliver a potent, fast-dissolving formula designed to remove tough stains, grout haze, rust, and mineral deposits from a variety of hard surfaces including granite, slate, ceramic, and porcelain. This 4 lb pack is a must-have for professionals and serious DIYers seeking industrial-strength cleaning with precision and ease.

## Description

Aqua Mix Sulfamic Acid Crystals are a granular sulfamic acid that eliminates tough stains Crystal formula dissolves in water to create a powerful stain remover Removes cured grout and mortar haze, rust and mineral deposits, and efflorescence Use with granite, slate, ceramic, porcelain, and quarry

Review: Gets out stains in just about everything. Just watch your measurements - Good product but if you use to much in your laundry it will eat your fabrics. Lol
Review: Good product - Great for cleaning up grout

## Features

- Aqua Mix Sulfamic Acid Crystals are a granular sulfamic acid that eliminates tough stains
- Crystal formula dissolves in water to create a powerful stain remover
- Removes cured grout and mortar haze, rust and mineral deposits, and efflorescence
- Use with granite, slate, ceramic, porcelain, and quarry

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003ANXVEQ |
| Best Sellers Rank | #61,803 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #72 in Chemical Acids |
| Brand Name | Aqua Mix |
| Customer Reviews | 4.6 4.6 out of 5 stars (83) |
| Item Form | Liquid |
| Item Weight | 1.9 Kilograms |
| Manufacturer | Custom Building |
| Number of Items | 1 |
| Specific Uses For Product | Crystal |
| Surface Recommendation | Stone |
| UPC | 718704502330 |
| Unit Count | 64 Fluid Ounces |

## Product Details

- **Brand:** Aqua Mix
- **Item Form:** Liquid
- **Specific Uses For Product:** Crystal
- **Surface Recommendation:** Stone
- **Unit Count:** 64 Fluid Ounces

## Images

![Sulfamic Acid Crystals - 4 lb - Image 1](https://m.media-amazon.com/images/I/419-jPiLS8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Gets out stains in just about everything. Just watch your measurements
*by D***S on January 20, 2026*

Good product but if you use to much in your laundry it will eat your fabrics. Lol

### ⭐⭐⭐⭐⭐ Good product
*by E***E on September 2, 2025*

Great for cleaning up grout

### ⭐⭐⭐⭐⭐ Tankless water heater descaler
*by M***O on January 16, 2026*

Descaled my tankless water heater with this. Looking around at MSDS sheets for products specifically marketed for water heater descaling indicates a lot of them are nothing but Sulfamic Acid Crystals, with a recommendation of 1.2lbs in two gallons of water. Just add two gallons of water to a 5gallon bucket, add 1.2lbs of these crystals, now you have a descaling solution.

## Frequently Bought Together

- Aqua Mix Sulfamic Acid Crystals - 4 lb
- WORKPRO Utility Knife Blades, SK5 Steel, 100-Pack with Dispenser

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**Shop now:** [https://www.desertcart.com.om/products/38077529-sulfamic-acid-crystals-4-lb](https://www.desertcart.com.om/products/38077529-sulfamic-acid-crystals-4-lb)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-05-11*