---
product_id: 6228747
title: "Roebic HD-CRY-DO-6 2-Pound Heavy Duty Crystal Drain Opener"
brand: "roebic"
price: "€ 52.58"
currency: EUR
in_stock: true
category: "Roebic"
url: https://www.desertcart.de/products/6228747-roebic-hd-cry-do-6-2-pound-heavy-duty-crystal
store_origin: DE
region: Germany
---

# 100% Sodium Hydroxide Power Grease-Melting Formula Fast-Acting Clog Removal Roebic HD-CRY-DO-6 2-Pound Heavy Duty Crystal Drain Opener

**Brand:** roebic
**Price:** € 52.58
**Availability:** ✅ In Stock

## Summary

> 🚿 Clear drains, clear mind — don’t let clogs cramp your flow!

## Quick Answers

- **What is this?** Roebic HD-CRY-DO-6 2-Pound Heavy Duty Crystal Drain Opener by roebic
- **How much does it cost?** € 52.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/6228747-roebic-hd-cry-do-6-2-pound-heavy-duty-crystal)

## Best For

- roebic enthusiasts

## Why This Product

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

## Key Features

- • **Trusted & Proven:** Highly rated with 4.3 stars from nearly 1,000 users who swear by its effectiveness.
- • **Precision Use Only:** Safe for most pipes—avoid aluminum, lead, zinc, or galvanized to protect your plumbing.
- • **Time & Money Saver:** Prevents costly plumbing repairs by maintaining clear pipes effortlessly.
- • **Grease-Busting Power:** Melts stubborn grease buildup to keep your drains flowing freely.
- • **Professional Strength Formula:** Clears toughest kitchen clogs with industrial-grade sodium hydroxide.

## Overview

Roebic HD-CRY-DO-6 is a 2-pound professional-grade crystal drain opener featuring 100% sodium hydroxide for powerful, fast-acting grease and clog removal. Ideal for kitchen drains, it prevents blockages and odors while saving time and plumbing costs. Not suitable for toilets or certain metal pipes, it’s a trusted solution with strong user ratings.

## Description

desertcart.com: Roebic HD-CRY-DO-6 2-Pound Heavy Duty Crystal Drain Opener : Everything Else

## Features

- Ideal for kitchen clogs. Melts grease, keeps drains clear, tackles tough kitchen blockages
- Professional Strength Crystal Drain Opener clears tough clogs from pipes and drains, saving you time and money
- 100% Lye. Contains sodium hydroxide. Not for use in toilets or garbage disposals. Avoid use with aluminium, lead, zinc, or galvanized pipes
- Follow label instructions for optimal results with Roebic Heavy Duty Crystal Drain Opener
- Contains 100% sodium hydroxide for powerful clog-clearing action. Keep drains and pipes free-flowing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BH34MEY |
| ASIN  | B00BH34MEY |
| Best Sellers Rank | #68,104 in Health & Household ( See Top 100 in Health & Household ) #152 in Chemical Drain Openers |
| Brand Name | Roebic |
| Customer Reviews | 4.3 4.3 out of 5 stars (962) |
| Date First Available  | February 11, 2013 |
| Global Trade Identification Number | 00033051120878 |
| Included Components | 2-Pound Heavy Duty Crystal Drain Opener |
| Item Form | Granular |
| Item Type Name | Professional Strength Crystal Drain Opener |
| Item Weight | 2 pounds |
| Item model number  | HD-CRY-DO |
| Manufacturer | Roebic Laboratories |
| Manufacturer  | Roebic Laboratories |
| Model Number | HD-CRY-DO |
| Number of Items | 1 |
| Part Number | HD-CRY-DO |
| Product Benefits | Cleans Drain, Eliminates Odor, Melts grease, clears clogs, and keeps drains clear, Removes Clog |
| Product Dimensions  | 2.25 x 4.5 x 7.75 inches; 2 pounds |
| Scent | Unscented |
| State of Matter | Solid |
| UPC | 033051120878 |
| Unit Count | 32 Ounce |

## Product Details

- **Brand:** Roebic
- **Item Weight:** 2 pounds
- **Product Benefits:** Cleans Drain, Eliminates Odor, Melts grease, clears clogs, and keeps drains clear, Removes Clog
- **Scent:** Unscented
- **State of matter:** Solid

## Images

![Roebic HD-CRY-DO-6 2-Pound Heavy Duty Crystal Drain Opener - Image 1](https://m.media-amazon.com/images/I/71CNm2YzEbL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: The bottle says 100% lye, and reviewers have said the msds sheet confirms, but when i look at the msds it states 96-100%. did it change? or what gives**
A: 96% is about right for industrial-grade chemicals.  To get 100% you need reagent grade and will pay for it.  So this is lye suitable for non-technical purposes.

**Q: Is this cleaner harmful to plastic drain pipes?**
A: In the short term probably not because there is no warning on the container about such a risk.  Plus, when I make soap, I dissolve the lye in a plastic bucket, one that I have dedicated to lye solution for soapmaking.  I have used the same bucket for a number of years, with no holes forming in it.  It is possible that over a period of decades it might be affected.  However, when I make lye solution for soapmaking, the solution sits in the same bucket for at least 30 minutes, sometimes longer, whereas drain cleaners are meant to go in and do their job, then get flushed away.  So I believe it is highly likely that this drain cleaner will not harm plastic drain pipes.

**Q: Will this product kill the good bacteria in the septic system?**
A: It is likely that Roebic lye crystals will kill the good bacteria in a septic system.  It would depend on how much lye you pour down the drain or toilet, and the size of your system, and possibly other factors.  I am fairly certain I have read more than once that lye is not to be used in septic systems which rely on living organisms to break down sewage.
If it is too late and you have used it and killed the living organisms, there is a product you can buy that is supposed to help recolonize or repopulate the system with good microorganisms.  Rid-X is one such product.  Good luck.

**Q: How many cups are in this 60 ounce container?**
A: According to my scale: 
1 cup of Roebic lye crystals weighs 9.6 ounces (oz)
2 cup Roebic lye crystals weighs 19.2 ounces (oz)
so 60 ounces (oz) should give you 6.25 cups.

## Frequently Bought Together

- Roebic HD-CRY-DO 2 Pounds Professional Strength Crystal Drain Opener, 100% Lye, Black
- Roebic K-97 Main Line Cleaner: Exclusive Bacteria Digests Paper, Fats, and Grease in Sewer and Septic Systems - 32 Ounces, Liquid
- Roebic FRK-1LB Foaming Root Killer: Clear Pipes, Stop New Growth, Safe for All Plumbing - 1lb, White, Granules

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**Shop now:** [https://www.desertcart.de/products/6228747-roebic-hd-cry-do-6-2-pound-heavy-duty-crystal](https://www.desertcart.de/products/6228747-roebic-hd-cry-do-6-2-pound-heavy-duty-crystal)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-08-14*