---
product_id: 512024172
title: "Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effective | The Original & Best l Works 3x Better Than Bleach (Packaging Varies)"
brand: "the retail heaven"
price: "307 kr"
currency: DKK
in_stock: true
reviews_count: 8
category: "The Retail Heaven"
url: https://www.desertcart.dk/products/512024172-powerful-drain-cleaner-and-unblocker-l-1kg-caustic-soda-fast
store_origin: DK
region: Denmark
---

# Fast-acting formula clears clogs in minutes 1KG powder with long shelf life Industrial-grade strength for heavy-duty use Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effective | The Original & Best l Works 3x Better Than Bleach (Packaging Varies)

**Brand:** the retail heaven
**Price:** 307 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Unleash the original powerhouse—drain clearing that means business!

## Quick Answers

- **What is this?** Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effective | The Original & Best l Works 3x Better Than Bleach (Packaging Varies) by the retail heaven
- **How much does it cost?** 307 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/512024172-powerful-drain-cleaner-and-unblocker-l-1kg-caustic-soda-fast)

## Best For

- the retail heaven enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Powerhouse:** Not just drains—perfect for degreasing tools and prepping surfaces
- • **Rapid Clog Annihilation:** Clears tough blockages within 10 minutes—no more waiting around
- • **Safe & Secure Packaging:** Tightly sealed 1KG container keeps powder fresh and spill-free
- • **Value Meets Performance:** Top-rated drain cleaner at an unbeatable price for serious results
- • **Industrial Strength, Home Ready:** Professional-grade formula trusted by experts, now in your toolkit

## Overview

This 1KG caustic soda drain cleaner delivers industrial-strength performance to rapidly dissolve tough clogs and debris in sinks and drains. Trusted for its fast-acting formula, it also doubles as a degreaser and surface prep agent. Designed for professional and home use, it requires careful handling with PPE due to its highly caustic nature. Packaged securely to maintain potency, it offers exceptional value and reliability for anyone serious about maintaining clear plumbing.

## Description

Quickly and effectively clear tough clogs with this heavy-duty 1KG caustic soda drain cleaner. Penetrates standing water to remove hair and debris, safe for all plumbing.

Review: Tested and tough—caustic soda clears drains fast, but demands respect and proper handling. - Used it on a blocked kitchen sink and a slow-draining outdoor gully—this stuff works fast. Mixed 100g with 1L of cold water, stirred until dissolved, and poured it straight down. Within 10 minutes, you could hear it fizzing and shifting the blockage. Followed up with hot water and the flow was back to normal. It’s industrial strength, so you need gloves, goggles, and ventilation. The powder reacts aggressively—don’t mess about. It also works well for degreasing tools, cleaning brickwork, and prepping surfaces before painting. I used it to strip grime off a concrete pad and it lifted years of buildup in one go. Packaging’s basic but solid. Lid seals tight, no leaks. Just keep it dry and locked away—this isn’t something you want kids or pets near. ✅ Pros Fast-acting—clears tough clogs in minutes Versatile—drains, tools, brickwork, degreasing Industrial-grade strength for serious jobs Affordable—around £8–£9 for 1KG1 2 3 4 Easy to mix and apply Long shelf life if stored properly ❌ Cons Highly caustic—needs full PPE and careful handling No childproof lid Can damage pipes if misused—follow instructions Not suitable for aluminium or soft metals
Review: can work as lye for soap making - I got this for soap making as the Lye element. The bottle is plastic and the soda is crystals/ granules Wear protective gloves and eye protection as it can burn Keep out of reach of kids and pets. Good value

## Features

- Causes serious eye damage.
- Causes severe skin burns and eye damage.
- Drain cleaners and unblockers 1KG Caustic Soda Drain Cleaner Caustic Soda Powder Sink and Drain cleaner strong the original and best drain cleaner kitchen drain unblocker
- Brand : Generic
- Product type: DRAIN OPENER SUBSTANCE

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BW63NBHD |
| ASIN  | B0BW63NBHD |
| Best Sellers Rank | 1,152 in Grocery ( See Top 100 in Grocery ) 11 in Drain Openers |
| Brand | The Retail Heaven |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,481) |
| Customer reviews | 4.3 4.3 out of 5 stars (1,481) |
| Date First Available | 26 Feb. 2023 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Format | powder |
| Manufacturer  | OSOB |
| Package Dimensions  | 22.4 x 8.6 x 6.6 cm; 1 kg |
| Units | 1.0 count |

## Product Details

- **Brand:** The Retail Heaven
- **Item weight:** 1 Kilograms
- **Product benefits:** Efficiently removes blockages from drains
- **Scent:** Unscented
- **State of matter:** Solid

## Images

![Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effective | The Original & Best l Works 3x Better Than Bleach (Packaging Varies) - Image 1](https://m.media-amazon.com/images/I/61R9sYMsB4L.jpg)

## Questions & Answers

**Q: Can this be used in an outside drain with some food/fat debris?**
A: Hi Katie. Ours was used for the upstairs sink, you can try it but i expect you'd need a heavy duty one..

**Q: Is this pure caustic soda powder with no extra ingredients added?**
A: It is Caustic Soda and works extremely well for overnight drain unblocking but it is not pure Sodium Hydroxide. So, don't use it for food grade purposes.

**Q: Can it be used to make  soap**
A: This is not to my knowledge used to make soap you can use it as a cleaning solution but it must be a very diluted   with water and always wear gloves, I've used it to clean paint work. Be cautious ⚠️

**Q: Is this a powder?**
A: Yes, this is a powder that you mix with cold water.  The water then gets warm to hot before it goes down the drain.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tested and tough—caustic soda clears drains fast, but demands respect and proper handling.
*by G***E on 24 September 2025*

Used it on a blocked kitchen sink and a slow-draining outdoor gully—this stuff works fast. Mixed 100g with 1L of cold water, stirred until dissolved, and poured it straight down. Within 10 minutes, you could hear it fizzing and shifting the blockage. Followed up with hot water and the flow was back to normal. It’s industrial strength, so you need gloves, goggles, and ventilation. The powder reacts aggressively—don’t mess about. It also works well for degreasing tools, cleaning brickwork, and prepping surfaces before painting. I used it to strip grime off a concrete pad and it lifted years of buildup in one go. Packaging’s basic but solid. Lid seals tight, no leaks. Just keep it dry and locked away—this isn’t something you want kids or pets near. ✅ Pros Fast-acting—clears tough clogs in minutes Versatile—drains, tools, brickwork, degreasing Industrial-grade strength for serious jobs Affordable—around £8–£9 for 1KG1 2 3 4 Easy to mix and apply Long shelf life if stored properly ❌ Cons Highly caustic—needs full PPE and careful handling No childproof lid Can damage pipes if misused—follow instructions Not suitable for aluminium or soft metals

### ⭐⭐⭐⭐⭐ can work as lye for soap making
*by E***A on 12 January 2026*

I got this for soap making as the Lye element. The bottle is plastic and the soda is crystals/ granules Wear protective gloves and eye protection as it can burn Keep out of reach of kids and pets. Good value

### ⭐⭐⭐⭐ Cleared some of the blockage
*by M***L on 8 November 2025*

This seemed to help the blockage. I’ve used two loads but could possibly use another

## Frequently Bought Together

- Powerful Drain Cleaner & Unblocker l 1KG Caustic Soda | Fast-Acting, Heavy-Duty Sink & Drain Cleaner | Strong & Effective | The Original & Best l Works 3x Better Than Bleach (Packaging Varies)
- Mr Muscle Drain Unblocker, Sink & Drain Cleaner, Fast Acting Heavy Duty Gel Formula, Dissolves Clogs, Works 3x Better Than Bleach, Safe for All Pipes, Duo Pack, (2 x 1L)
- Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.dk/products/512024172-powerful-drain-cleaner-and-unblocker-l-1kg-caustic-soda-fast](https://www.desertcart.dk/products/512024172-powerful-drain-cleaner-and-unblocker-l-1kg-caustic-soda-fast)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-22*