--- product_id: 355531079 title: "Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1)" brand: "spear & jackson" price: "5937887β‚«" currency: VND in_stock: true reviews_count: 8 category: "Spear & Jackson" url: https://www.desertcart.vn/products/355531079-spear-jackson-heavy-duty-sink-and-drain-unblocker-gel-powerful store_origin: VN region: Vietnam --- # Clears blockages in 3 hours Safe for indoor & outdoor drains Powerful heavy-duty gel formula Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1) **Brand:** spear & jackson **Price:** 5937887β‚« **Availability:** βœ… In Stock ## Summary > 🚿 Unclog like a proβ€”because your sink deserves the best flow! ## Quick Answers - **What is this?** Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1) by spear & jackson - **How much does it cost?** 5937887β‚« with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/355531079-spear-jackson-heavy-duty-sink-and-drain-unblocker-gel-powerful) ## Best For - spear & jackson enthusiasts ## Why This Product - Trusted spear & jackson brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Trusted Heritage:** Backed by 250+ years of Spear & Jackson innovation and quality. - β€’ **Rapid Action Formula:** Dissolves hair, grease, soap, and food deposits in just 3 hours. - β€’ **Long-Lasting Freshness:** Not only clears blockages but leaves your drains smelling brand new. - β€’ **Effortless Drain Revival:** Just pour, wait, and flushβ€”no tools needed for a clog-free sink. - β€’ **Versatile & Pipe-Friendly:** Safe on all pipe types, perfect for kitchen, bathroom, and exterior drains. ## Overview Spear Jackson Heavy Duty Sink and Drain Unblocker Gel is a 5L powerful gel designed to dissolve tough blockages caused by hair, grease, soap, and food deposits. It works within 3 hours without the need for tools, is safe for all pipe types, and suitable for both indoor and outdoor drains. Trusted for over 250 years, this gel keeps your drains flowing smoothly and smelling fresh. ## Description Product description Sink & Drain Unblocker Gel quickly clears drains and plug holes, dissolving hair, soap, grease and food deposits, the common causes of blockages even through standing water. Regular use maintains free running and keeps drains fresh. Contents: 1 x 5L Drain Unblocker. Directions Pour the heavy duty drain unblocker down the plughole, leave for a minimum of 3 hours (preferably overnight), then finish off by flushing the drain with hot water for at least 2 minutes. 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); }); }); Safety Warning Keep away from the reach of kids. Legal Disclaimer Note: The colour of the bottle may vary See more Review: Did excellent job on my drain! - I recently tried the Heavy Duty Sink and Drain Unblocker Gel, and I must say that this product has truly been a lifesaver in my household. Dealing with clogged sinks and drains can be a headache, but this gel made the process of unclogging them incredibly easy and efficient. First and foremost, the effectiveness of this unblocker gel is remarkable. I had a stubborn clog in my kitchen sink that had resisted all previous attempts to clear it. With this gel, I poured it down the drain, as directed, and within a relatively short time, I could see and hear it working its magic. The clog was gone, and water was flowing smoothly again. It was like a sigh of relief, knowing that I didn't have to deal with the inconvenience of a blocked sink any longer. What I appreciate most about this product is its heavy-duty formula. It's designed to tackle even the toughest clogs, whether they're caused by grease, hair, soap scum, or other debris. It's a versatile solution for various types of clogs in both kitchen and bathroom drains. The ease of use is another significant advantage. I simply followed the instructions on the bottle, and there was no need for any complicated procedures or tools. It's a hassle-free way to address a common household problem. Furthermore, I found the gel to be safe for my pipes, which is always a concern when using drain cleaners. It didn't cause any damage or corrosion, and it left my pipes in good condition. In conclusion, the Heavy Duty Sink and Drain Unblocker Gel has proven to be a reliable and effective solution for unclogging sinks and drains. Its heavy-duty formula, ease of use, and pipe-friendly properties make it a standout product. If you're tired of dealing with persistent drain clogs, I highly recommend giving this gel a try. It's a product that delivers on its promises and provides a quick and efficient solution to a common household issue. Review: drain unblocker - works well in outside drains ## Features - Causes serious eye damage. - Causes severe skin burns and eye damage. - Harmful to aquatic life with long lasting effects. - May be corrosive to metals. - Warning! Do not use together with other products. May release dangerous gases (chlorine). - SPEAR & JACKSON CLEANING PRODUCTS: Since 1760 Spear and Jackson has been selling hand, garden, contractors, agricultural, landscaping and professional tools from its base in the city of Sheffield. Their range of cleaning products are made to target tough stains, grease, grim and fat. Their Heavy Duty Outdoor Drain Unblocker Gel is designed to clear any deposits that are blocking your sink, leaving it draining smoothly - SINK UNBLOCKER LIQUID GEL: Spear and Jackson's Heavy Duty Sink And Drain Unblocker comes in gel form and is designed to dissolve the fat, food, hair or soap residue build up that's blocking your sink. Their heavy duty sink and drain unblocker gel will instantly clear and dissolve the unwanted blockage, and with the sink freshener element of the gel, your sink will be look and smell brand new - BATHROOM & KITCHEN SINK UNBLOCKER: With no drain snake require, this product really couldn't be any easier to use. The gel will dissolve any build up that is causing a blockage in your sink or drain in 3 hours. 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: Spear and Jackson'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 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! - SPEAR & JACKSON: With over 250 years experience and continuous innovation, Spear and Jackson have built an enviable reputation with their market leading products that offer high quality performance tools to suit a wide range of needs. Whether you're looking to unblock your sink drain or a concentrated mould, algae and moss spray then shop Spear and Jackson range of versatile, effective and long lasting cleaning products ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09DQ8T3ZZ | | ASIN | B09DQ8T3ZZ | | Best Sellers Rank | 3,889 in Grocery ( See Top 100 in Grocery ) 28 in Drain Openers | | Brand | Spear & Jackson | | Country of origin | United Kingdom | | Country of origin | United Kingdom | | Customer Reviews | 4.2 4.2 out of 5 stars (844) | | Customer reviews | 4.2 4.2 out of 5 stars (844) | | Date First Available | 16 April 2021 | | 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. | | Manufacturer | Assured Products Limited | | Units | 5000.0 millilitre | ## Product Details - **Brand:** Spear & Jackson - **Manufacturer:** Assured Products Limited - **Product benefits:** Dissolves various types of blockages and freshens sinks - **Scent:** Unscented - **State of matter:** Liquid ## Images ![Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/61V6bIrKnXL.jpg) ## Questions & Answers **Q: how much needs to be used at a time?** A: All of it for heavily blocked outdoor drains. **Q: Spear jackson heavy duty sink and drain unblocker gel -is this sulphuric acid** A: Not that I remember re sulphuric acid but the product was not as good as I was hoping. **Q: will this item clear outdoor drains** A: Yes. It cleared mine. **Q: I think i may have candle wax far down my drain, will this remove it please?** A: Probably. Boiling hot water should work, also. I'd try that first as it's free. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Did excellent job on my drain! *by S***V on 4 November 2023* I recently tried the Heavy Duty Sink and Drain Unblocker Gel, and I must say that this product has truly been a lifesaver in my household. Dealing with clogged sinks and drains can be a headache, but this gel made the process of unclogging them incredibly easy and efficient. First and foremost, the effectiveness of this unblocker gel is remarkable. I had a stubborn clog in my kitchen sink that had resisted all previous attempts to clear it. With this gel, I poured it down the drain, as directed, and within a relatively short time, I could see and hear it working its magic. The clog was gone, and water was flowing smoothly again. It was like a sigh of relief, knowing that I didn't have to deal with the inconvenience of a blocked sink any longer. What I appreciate most about this product is its heavy-duty formula. It's designed to tackle even the toughest clogs, whether they're caused by grease, hair, soap scum, or other debris. It's a versatile solution for various types of clogs in both kitchen and bathroom drains. The ease of use is another significant advantage. I simply followed the instructions on the bottle, and there was no need for any complicated procedures or tools. It's a hassle-free way to address a common household problem. Furthermore, I found the gel to be safe for my pipes, which is always a concern when using drain cleaners. It didn't cause any damage or corrosion, and it left my pipes in good condition. In conclusion, the Heavy Duty Sink and Drain Unblocker Gel has proven to be a reliable and effective solution for unclogging sinks and drains. Its heavy-duty formula, ease of use, and pipe-friendly properties make it a standout product. If you're tired of dealing with persistent drain clogs, I highly recommend giving this gel a try. It's a product that delivers on its promises and provides a quick and efficient solution to a common household issue. ### ⭐⭐⭐⭐ drain unblocker *by V***N on 24 November 2025* works well in outside drains ### ⭐⭐⭐⭐⭐ Spear Jackson, one to rely on. *by L***D on 30 December 2025* Although I have only used twice, this product has made a massive difference to a bath waste. Due to a medical condition, my husband has to use oil in a bath to soak in. Over time the waste has slowed right down and has started making an awful noise. However, in just 2 uses, that has dissipated. I will use once a week and hopefully reduce to once per month. Will now use it on the kitchen sink waste also. Having used many products, I can now rely on this. ## Frequently Bought Together - Spear Jackson Heavy Duty Sink and Drain Unblocker Gel - Powerful Formula- Indoor and Outdoor, 5 l (Pack of 1) - 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 500ml) - 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) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/355531079-spear-jackson-heavy-duty-sink-and-drain-unblocker-gel-powerful](https://www.desertcart.vn/products/355531079-spear-jackson-heavy-duty-sink-and-drain-unblocker-gel-powerful) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-19*