---
product_id: 493793921
title: "One Chem Heavy Duty Sink and Drain Unblocker 2 x 750ml - Powerful formula for indoor and outdoor use"
brand: "one chem"
price: "€ 38.17"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.ie/products/493793921-one-chem-heavy-duty-sink-and-drain-unblocker-2-x
store_origin: IE
region: Ireland
---

# Instant clog dissolving power Safe for all pipe types, indoor & outdoor No tools or drain snakes needed One Chem Heavy Duty Sink and Drain Unblocker 2 x 750ml - Powerful formula for indoor and outdoor use

**Brand:** one chem
**Price:** € 38.17
**Availability:** ✅ In Stock

## Summary

> 🚿 Clear drains, clear mind — unblock like a pro with One Chem!

## Quick Answers

- **What is this?** One Chem Heavy Duty Sink and Drain Unblocker 2 x 750ml - Powerful formula for indoor and outdoor use by one chem
- **How much does it cost?** € 38.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/493793921-one-chem-heavy-duty-sink-and-drain-unblocker-2-x)

## Best For

- one chem enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Use:** No drain rods or equipment—just pour & relax 🛠️
- • **Generous Volume:** 2 x 750ml bottles for extended heavy-duty cleaning power 💧
- • **Dual-Use Formula:** Perfect for kitchen, bathroom, and exterior drains 🌍
- • **Pipe-Safe Chemistry:** Powerful yet safe on all pipe materials, preventing damage 🔒
- • **Rapid Blockage Breakdown:** Clears fats, hair, soap & food residue in minutes ⚡

## Overview

One Chem Heavy Duty Sink and Drain Unblocker delivers a powerful, fast-acting formula in two 750ml bottles designed to dissolve tough blockages caused by fats, hair, soap, and food residues. Safe for all pipe types and usable indoors or outdoors, it eliminates the need for drain snakes or tools, making drain maintenance effortless and efficient.

## Description

Product description               HEAVY DUTY SINK UNBLOCKER: To tackle the build up on fats, foods, hair and soap residue in your bathroom or kitchen sink that is blocking your drains, One Chem's heavy duty sink and drain unblocker is specifically designed to instantly clear and dissolve the unwanted blockage quickly and efficiently. Contains 2 x 750ml Heavy Duty Drain Unblocker                  Directions               Pour the entire bottle of heavy duty drain unblocker down the plughole, leave for a minimum of 3 hours (preferably overnight), and then flush the drain with hot water for at least 2 minutes.

## Features

- HEAVY DUTY SINK UNBLOCKER: To tackle the build up on fats, foods, hair and soap residue in your bathroom or kitchen sink that is blocking your drains, One Chem's heavy duty sink and drain unblocker is specifically designed to instantly clear and dissolve the unwanted blockage quickly and efficiently
- NO DRAIN SNAKE NEEDED: No need to waste your time with drain rods, this product requires no tools or equipment as it swiftly dissolves any build up. Ideal for the kitchen or bathroom sink, however this Heavy Duty Sink & Drain Unblocker works on exterior drains just as well. In comparison to other drain cleaners and unblockers on the market, this product has a powerful formulation that achieves results in rapid speed
- BATHROOM CLEANING PRODUCTS: One Chem's fast acting, powerful and effective sink and drain unblocker liquid is perfectly safe to use on all pipe types. For the best results, pour the entire bottle of heavy duty drain unblocker down the plughole, leave for a minimum of 3 hours (preferably overnight) and finish off by flushing the drain with hot water for at least 2 minutes to completely free any blockages - it's really that easy!
- POWERFUL FORMULA: for indoor and outdoor use
- Contains 2 x 750ml Heavy Duty Drain Unblocker

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Units | 1500.0 millilitre |
| Brand | One Chem |
| Format | cylindrical liquid |
| Country of origin | Turkey |

## Product Details

- **Brand:** One Chem
- **Scent:** Unscented
- **Product benefits:** Quickly and efficiently clears blockages in sinks, safe for all pipes, usable indoors and outdoors, and requires no tools
- **Manufacturer:** Assured Products Limited
- **Number of items:** 2

## Images

![One Chem Heavy Duty Sink and Drain Unblocker 2 x 750ml - Powerful formula for indoor and outdoor use - Image 1](https://m.media-amazon.com/images/I/81AbCI53R6L.jpg)
![One Chem Heavy Duty Sink and Drain Unblocker 2 x 750ml - Powerful formula for indoor and outdoor use - Image 2](https://m.media-amazon.com/images/I/61y7meGcpEL.jpg)
![One Chem Heavy Duty Sink and Drain Unblocker 2 x 750ml - Powerful formula for indoor and outdoor use - Image 3](https://m.media-amazon.com/images/I/71-cupUOx3L.jpg)
![One Chem Heavy Duty Sink and Drain Unblocker 2 x 750ml - Powerful formula for indoor and outdoor use - Image 4](https://m.media-amazon.com/images/I/71jCbNSZo-L.jpg)
![One Chem Heavy Duty Sink and Drain Unblocker 2 x 750ml - Powerful formula for indoor and outdoor use - Image 5](https://m.media-amazon.com/images/I/71hqWhExikL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It ACTUALLY WORKS 🎉🎉
*by C***S on 10 May 2025*

Absolutely fantastic clogged drain saver!! I recommend everyone to purchase it .

### ⭐⭐⭐⭐ One bottle is one application
*by P***T on 28 June 2023*

I never realised that one whole bottle only did one application. So I put one bottle down my outside drain and it was still blocked so I used the other bottle and that did the trick. I don't know how it would work on a sink drain but it does say to use the whole bottle. But it's still cheaper than a plumber so I'm happy.

### ⭐⭐⭐⭐⭐ Leaked
*by F***T on 16 July 2023*

Good at unblocking sink. But do go careful as it leaked in the bag it was in and seeped through. Make sure you wear gloves and cut the bag open over the bath or sink. Do Not open and take out over a carpet or bathmat as will take the colour out. I had to store one of the bottles in my mop bucket so has not to leak out, even though it's still in a thick plastic bag

## Frequently Bought Together

- One Chem Heavy Duty Sink and Drain Unblocker 2 x 750ml - Powerful formula for indoor and outdoor use
- 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)
- Luigi's Sink and Drain Plunger for Bathrooms, Kitchens, Sinks, Baths and Showers. Small and Powerful, Commercial Style 'Plumbers Plunger' with Large Bellows

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**Shop now:** [https://www.desertcart.ie/products/493793921-one-chem-heavy-duty-sink-and-drain-unblocker-2-x](https://www.desertcart.ie/products/493793921-one-chem-heavy-duty-sink-and-drain-unblocker-2-x)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-25*