---
product_id: 48577621
title: "HG Duo Unblocker - Powerful Drain Cleaner, for Kitchen Sink or Bathroom Pipes - 2 x 500 ml"
brand: "hg"
price: "€ 56.49"
currency: EUR
in_stock: true
reviews_count: 10
category: "Hg"
url: https://www.desertcart.nl/products/48577621-hg-duo-unblocker-powerful-drain-cleaner-for-kitchen-sink-bathroom
store_origin: NL
region: Netherlands
---

# Ultra-powerful 2-step formula Works overnight for deep unblock 2 x 500ml easy-pour bottles HG Duo Unblocker - Powerful Drain Cleaner, for Kitchen Sink or Bathroom Pipes - 2 x 500 ml

**Brand:** hg
**Price:** € 56.49
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** HG Duo Unblocker - Powerful Drain Cleaner, for Kitchen Sink or Bathroom Pipes - 2 x 500 ml by hg
- **How much does it cost?** € 56.49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/48577621-hg-duo-unblocker-powerful-drain-cleaner-for-kitchen-sink-bathroom)

## Best For

- hg enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Use:** Safe and effective for kitchen, bathroom, and utility drains
- • **No Mess, No Fuss:** No splash, no foam formula—ready to use straight from the bottle
- • **Dual-Action Power:** Two-component technology targets toughest blockages fast
- • **Professional Grade:** Trusted by pros, perfect for home managers who demand results
- • **Long-Lasting Effect:** Leave overnight for stubborn clogs, rinse for a fresh, free-flowing drain

## Overview

HG Duo Unblocker is a professional-grade, dual-component drain cleaner designed to dissolve stubborn blockages caused by oil, hair, soap scum, and food debris. Delivered in two easy-to-use 500ml bottles, it works safely overnight without splashing or foaming, restoring free-flowing drains in kitchens, bathrooms, and utility areas. Ideal for millennials managing busy homes who want to avoid costly plumbers and maintain a hygienic, smoothly running household.

## Description

Product Description HG Duo Unblocker is a powerful drain blockage remover that can easily and effectively unblock your kitchen and bathroom drains. With this bathroom, utility or kitchen sink drain cleaner you may not need to call a plumber! Whether your blockage is due to oil, food, soap scum or hair, this two-step drain pipe cleaner and plug hole unblocker can effectively break down stubborn and persistent blockages, without damaging your pipes. Discover HG professional's wide range of specialist multi surface cleaner products and all purpose cleaner sprays for your home, office and outside space. Includes: HG Duo Unblocker liquid, 2 x 250ml (343100106) Instructions: 1. First remove as much of the stagnant water as possible. 2. Carefully pour on dosage of bottle A then B, as directed. NB – the dosage is different for kitchen and bathroom blockages, as stated on the packaging. 3. Leave the product to work for 1 hour. If possible, leave it to work overnight. 4. Rinse with a generous amount of water. Pour in the remainder of the liquid, as directed, for a post treatment. Use protective gloves and glasses. Keep out of reach/sight of children. Always read the label. Ingredients GMO Free P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions 1. Remove stagnant water. 2. Carefully pour on dosage of bottle A then B. 3. Leave the product to work for 1 hour or overnight. 4. Rinse with a generous amount of water. 5. Pour in the remainder of the liquid for a post treatment. Use protective gloves and glasses. Keep out of reach of children. Do not use together with other products. Safety Warning Use protective gloves and glasses. Keep out of reach of children. Do not use with other products. Box Contains 1 x 1kg Manufacturer Contact Information Unit 2 Lanswood Park Colchester Co7 7Fd See more

Review: Worked on a slow draining bath / shower. - It does actually work. I had a slow draining bath and would fill up slowly while showering. Previously I had tried another drain cleaner to no effect. Followed the instructions and left overnight, then poured rest of bottles down the drain and again left for many hours. Bath now flows freely and no longer fills while showering.
Review: Takes time but works! - Ok so it takes time and patience! 2 weeks I've had a blocked drain and tried everything. I mean everything! I lost my job due to covid and I couldn't afford a call out. It was the drain for bath, sink and washing machine. I was left washing at kitchen sink. The drain snake I brought got caught on blockage and broke. Other unblockers didnt work. I spent a whole afternoon taking pipes apart under my bath. Despite some bad reviews I thought I had nothing left to loose. I did first part and left 9 hours. Hot water wouldn't flush through and filled my bath, so I was very despondent. I poured the second part in and went to bed, thinking its worth a try. In the morning there was no water left in my bath. Excited I boiled the kettle and it didnt drain. So I tried again and it started to go slowly. About 15 kettles later it was draining, if slowly. My bathroom no longer smelt of stagnant water and I could clean my bath, if slowly. Excited, I ran a bath and thought I'd order more to completely clear blockage. After bath removed plug, and the water gurgled and went quickly down plug hole. Whirlpool and everything! I put my washing on and the water didnt come up into my bath. This has never happened since I moved in. So persevere, leave longer than what it says and use lots of hot water! I'm so so happy xxx in the video my washing machine is on 😊

## Features

- Causes serious eye damage.
- Causes serious eye irritation.
- Causes severe skin burns and eye damage.
- Causes skin irritation.
- Very toxic to aquatic life.
- Warning! Do not use together with other products. May release dangerous gases (chlorine).
- HG Drain Unblocker duo: Ultra effective drain unblocker for blocked pipes in and around the home. Extremely powerful and recommended for stubborn blockages or persistently clogged drains
- Effective multi purpose cleaner for removing stubborn blockages: Kitchen or bathroom plug unblocker, breaks down drain blockages caused by oil, food, debris, soap scum or hair
- Shower and bath unblocker: Heavy duty pipe unblocker and drain pipe cleaner uses unique 2-component technology (bottles A and B) which work together to treat the clogged drain
- No splash, easy to use: Drain unblocker liquid is safe for all drain types and won't foam or splash. It's ready to use and won't need diluting. Safe to use in kitchen, utility areas and wet rooms
- Includes: HG Duo Unblocker, 2 x 500ml. Discover the innovative range of HG professional household cleaning products, including HG mould remover spray, multi purpose cleaners and all surface cleaners

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0038F0M02 |
| ASIN  | B0038F0M02 |
| Best Sellers Rank | 2,056 in Grocery ( See Top 100 in Grocery ) 16 in Drain Openers |
| Brand | HG |
| Customer Reviews | 4.1 4.1 out of 5 stars (3,322) |
| Customer reviews | 4.1 4.1 out of 5 stars (3,322) |
| Date First Available | 13 Feb. 2010 |
| 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. |
| Is discontinued by manufacturer  | No |
| Item model number  | 343100106 |
| Manufacturer  | HG Hagesan (UK) Ltd, uk home improvement, HGHAG |
| Manufacturer contact | Unit 2 Lanswood Park Colchester Co7 7Fd |
| Product Dimensions  | 6.8 x 13.5 x 21.1 cm; 1.4 kg |
| Product Name | HG DUO UNBLOCKER 1 LITRE |
| Storage Instructions | Transport and store the box upright. Always store the bottles in a cool dark place in an upright position. |
| Units | 1 count |
| Volume | 1000 Millilitres |
| Weight | 1.4 Kilograms |

## Product Details

- **Brand:** HG
- **Item weight:** 1.4 Kilograms
- **Scent:** Unscented
- **State of matter:** Liquid

## Images

![HG Duo Unblocker - Powerful Drain Cleaner, for Kitchen Sink or Bathroom Pipes - 2 x 500 ml - Image 1](https://m.media-amazon.com/images/I/51ZlVX3nbFL.jpg)

## Available Options

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

## Questions & Answers

**Q: can i use this with a septic tank?**
A: I don't have a septic tank but I do have a "Biodisc" digester instead of mains sewerage. I've used Duo four or five times over about the same number of years and it has not caused any problems. It also does the job far better than anything else 've ever tried.

**Q: Can use this for the toilet? Would it damage the white ceramic bowl?**
A: Good afternoon,

Please be informed that HG "duo unblocker" must not come in contact with the ceramic bowl. It must be pourred carefully in the drain, to avoid any damage of the surface.
However in case of a toilet we can not guarantee that the blockage will be solved. The blockage could be too far away or the product will be diluted too much by the water in the toilet drain.

Trusting that we have informed you sufficiently,
with kind regards,
HG consumerservice

**Q: is this suitable for outdoor drains?**
A: Good morning,
Please be informed that this product is not suitable for outdoor drains.
We do not have an alternative product in our product range which can be at your assistance.
Trusting that we have informed you sufficiently,
with kind regards,
HG consumerservice

**Q: Can this be used in a washing machine? to help clear hair blockage?**
A: No, this is not suitable for use in a washing machine or dishwasher.  We would suggest using HG Service Engineer which is designed for use with washing machines and dishwashers.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked on a slow draining bath / shower.
*by B***E on 12 November 2025*

It does actually work. I had a slow draining bath and would fill up slowly while showering. Previously I had tried another drain cleaner to no effect. Followed the instructions and left overnight, then poured rest of bottles down the drain and again left for many hours. Bath now flows freely and no longer fills while showering.

### ⭐⭐⭐⭐⭐ Takes time but works!
*by M***E on 17 January 2021*

Ok so it takes time and patience! 2 weeks I've had a blocked drain and tried everything. I mean everything! I lost my job due to covid and I couldn't afford a call out. It was the drain for bath, sink and washing machine. I was left washing at kitchen sink. The drain snake I brought got caught on blockage and broke. Other unblockers didnt work. I spent a whole afternoon taking pipes apart under my bath. Despite some bad reviews I thought I had nothing left to loose. I did first part and left 9 hours. Hot water wouldn't flush through and filled my bath, so I was very despondent. I poured the second part in and went to bed, thinking its worth a try. In the morning there was no water left in my bath. Excited I boiled the kettle and it didnt drain. So I tried again and it started to go slowly. About 15 kettles later it was draining, if slowly. My bathroom no longer smelt of stagnant water and I could clean my bath, if slowly. Excited, I ran a bath and thought I'd order more to completely clear blockage. After bath removed plug, and the water gurgled and went quickly down plug hole. Whirlpool and everything! I put my washing on and the water didnt come up into my bath. This has never happened since I moved in. So persevere, leave longer than what it says and use lots of hot water! I'm so so happy xxx in the video my washing machine is on 😊

### ⭐⭐⭐⭐ Couldn't have cleared it without you HG.
*by I***N on 22 April 2017*

I had a complete blockage, standing water the lot! This was my last resort (already owning a master plunger and a plumbers snake). Did it work? Well yes and no. I removed as much water as possible, as per instructions, and then poured the measures required for my bathroom sink down the hole as it were. As expected this quickly overfilled into my sink (because of the complete blockage and this being a totally liquid product compared to a gel or the like) however pleasantly surprised to find this a clean process. No messy splashing or foaming. Within 5 minutes the water went down at least 2cm so it was definitely doing something. I then left it overnight as instructed. The following morning however the water/HG mix in my sink had moved no further. DRAMA. Considering the fact that I couldn't use the sink before pouring this down there I had no real qualms with giving it a bit more time, so I carried on with my life and left it for 3 days. Then one evening upon getting home from work and trying to mentally work out exactly how much a plumber would charge me to fix this I thankfully tried the trifecta. After giving HG 3 days to do it's stuff and using a combination of the plumbers snake and the plunger the blockage was cleared within 10 minutes. Now don't misunderstand me, this sounds like all it took was elbow grease but this stuff certainty did SOMETHING, even if it couldn't manage the whole job on it's own. I didn't have the plunger/plumbers snake just sitting around before I purchased HG, I had tried both of them separately and together. I'd imagine in less dire situations than mine this would jolly well sort it out all on it's own but I am understanding that I had a particularly nasty blockage and a three pronged attack was required. Although I had to do some work myself I am extremely pleased that I paid £10ish pounds for this rather than calling a plumber as my problem is absolutely solved. The sink has never been clearer and I didn't get burned with acid or anything ridiculous. What more can I ask for?

## Frequently Bought Together

- HG Duo Unblocker, Powerful Drain Cleaner & Drain Unblocker, Kitchen Sink Unblocker & Bathroom Sink Unblocker, Pipe Cleaner, Plug Hole Liquid & Hair Unblocker - 2x 250ml
- HG Drain and Plug Hair Unblocker, Removes Hair from Showers, Baths, Sinks & Plug Holes, Unblocks Blocked Bathroom Pipes & Drains Quickly & Easily (200 ml + 250 ml) - 667045106
- HG Kitchen Drain & Plug Unblocker, Natural Drain Unblocker, Heavy Duty Drain Cleaner, Kitchen Sink Unblocker & Kitchen Cleaner for Pipes, Septic Tank Safe - 1 Litre

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-14*