--- product_id: 516148531 title: "Bathroom Drain Unblocker (Pack of 2 x 300ml)" brand: "buster" price: "¥6000" currency: JPY in_stock: true reviews_count: 8 category: "Buster" url: https://www.desertcart.jp/products/516148531-bathroom-drain-unblocker-pack-of-2-x-300ml store_origin: JP region: Japan --- # 2 x 300ml powerful bottles Clears drains in 15 mins Safe for septic systems Bathroom Drain Unblocker (Pack of 2 x 300ml) **Brand:** buster **Price:** ¥6000 **Availability:** ✅ In Stock ## Summary > 🚿 Bust blockages fast — because slow drains are so last decade! ## Quick Answers - **What is this?** Bathroom Drain Unblocker (Pack of 2 x 300ml) by buster - **How much does it cost?** ¥6000 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/516148531-bathroom-drain-unblocker-pack-of-2-x-300ml) ## Best For - buster enthusiasts ## Why This Product - Trusted buster brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fast-Acting Power:** Dissolves hair, soap scum & sludge in just 15 minutes for instant flow. - • **Trusted Expertise:** Backed by 35+ years of Buster’s relentless plughole care innovation. - • **Dual-Pack Convenience:** Two 300ml bottles keep you ready for any bathroom blockage emergency. - • **Pipe-Friendly Formula:** Specially designed to protect all bathroom pipes and septic systems. - • **Effortless Maintenance:** Simple pour-and-wait application eliminates the need for tools or harsh scrubbing. ## Overview Buster Bathroom Drain Unblocker is a concentrated, fast-acting liquid solution designed to clear stubborn bathroom blockages caused by hair, soap scum, and sludge. Each pack contains two 300ml bottles that work within 15 minutes to restore free-flowing drains safely across showers, baths, and basins, including septic systems. Trusted for over 35 years, Buster offers a hassle-free, powerful alternative to mechanical tools, ensuring your bathroom plumbing stays clog-free with minimal effort. ## Description Product Description Buster drain unblocker is the one-shot shower unblocker, sink cleaner and bath unblocker specially designed to blast away hair and soap scum in bathroom drains fast. Blockages and slow draining water in the bathroom are usually caused by the same things - hair, soap and sludge - and this is where Buster drain hair unblocker comes in. These plughole nasties are constantly building up inside the pipes. Buster Bathroom strong drain unblocker has a unique formulation that tackles this build-up. Whether it’s a full blockage or slow draining water, Buster bathroom sink unblocker gets to work quickly. The drain unblocker liquid heavy duty dissolves hair and clearing sludge to keep water flowing freely. The drain cleaners mighty one-shot power action is fast-acting and drops straight to the blockage, getting to work quickly. To use remove as much standing water as you can then carefully pour the entire 300ml bottle of drain clog remover slowly down the plughole and wipe away any residue. Leave for at least 15 minutes (for best results leave the sink drain cleaner to work overnight), then flush through with lots of hot water. Buster Bathroom Plughole sink and drain unblocker is suitable for bathroom showers, baths and basins and is safe to use on septic systems. So go on, bust out the Buster drain cleaners and unblockers to keep your plughole flowing. Ingredients 5% Non - Ionic Surfactants, 5% Perfumes, 5-15 Chlorine-Based Bleaching Agents Directions To use Buster Bathroom Plughole Unblocker, follow these steps: 1. Remove as much standing water possible from the sink, shower, or bath. 2. Carefully pour entire 300ml bottle slowly down plughole. 3. Wipe away any residue. 4. Leave product to work for at least 15 minutes, overnight best results. 5. Flush through with lots of hot water. 6. Store container in a dry, cool, and well-ventilated place. Always per instructions on packaging. This drain opener substance is safe septic systems. Safety Warning Use as per instructions on product packaging Review: The ultimate bathroom drain clearer fast-acting and highly effective - Dealing with slow-draining water in the shower or bathroom basin is a common household nuisance, but this Buster Bathroom Drain Unblocker tackles the problem head-on. Unlike generic multi-purpose unblockers, this thick liquid formula is specifically engineered to dissolve the unique culprits found in bathroom plumbing namely tangled hair, soap scum, and greasy sludge. It pours smoothly down the plughole and clings to the blockage effectively rather than just flushing straight through, actively breaking down the obstruction without damaging the underlying pipes. The application process couldn't be simpler or more fuss-free. For regular maintenance or a slow-running drain, you simply pour the recommended dose directly into the plughole, leave it to work its magic, and then flush it through with plenty of hot water. For particularly stubborn or completely standing-water blockages, leaving it to sit slightly longer completely clears the pipework, allowing water to instantly whirlpool down the drain again with zero backing up. Receiving this product as a handy twin pack offers brilliant long-term value for household maintenance. Having a second bottle stored away in the cupboard means you can instantly treat a secondary bathroom basin or use it as a regular monthly preventative treatment to stop soap scum build-up before it turns into a total blockage. It is an industrial-strength, highly reliable solution that completely eliminates the need for awkward mechanical drain snakes or plunger tools, making it an easy five-star recommendation for keeping your plumbing completely clear. Review: It works ! - Bought on spec following positive reviews, and very pleased I did. Cheaper than a certain well known and advertised brand too. We have a relatively shallow drop waste from our shower, and have learned from experience with the old bath how quickly soap and associated grit can build up and restrict outflow. So, at the first sign of waste water slowing, I applied the contents of one bottle as directed and left for around four hours before rinsing through with hot water. Results were excellent, and any restrictions were obviously cleared as the shower now drains very quickly and completely.. I didn’t notice any particular odour with the cleaner and it all rinsed away without leaving any residue. I will buy some more in order to use on a regular, preventative basis 👍 ## Features - Causes serious eye damage. - Causes severe skin burns and eye damage. - Toxic to aquatic life with long lasting effects. - Very toxic to aquatic life with long lasting effects. - Very toxic to aquatic life. - Warning! Do not use together with other products. May release dangerous gases (chlorine). - CLEARS STUBBORN BLOCKAGES IN ONE SHOT - hair, sludge and soap scum are the usual suspects for slow-draining pipes but one shot of concentrated Buster bathroom plug unblocker goes straight to the blockage and dissolves all the nasties - FREE-FLOWING DRAINS IN 15 MINUTES - it doesn't matter if it's slow draining water or a full blockage, the fast acting shower drain unblocker gets to work almost instantly in just 15 minutes (leave it overnight for even better results) - WORKS ON ALL YOUR BATHROOM PIPES - this specially formulated pipe unblocker clears blockages inside your shower, bath and basin plugholes, plus it's safe to use on septic systems - VALUE BUNDLE KEEPS YOU PREPARED - as hair, soap and grime constantly build up in bathroom pipes, this handy two-pack of sink and drain cleaner means you're ready for the next blockage - YOUR PLUGHOLE EXPERTS - for over 35 years Buster has obsessively made a range of plughole care products to tackle every drain problem. From the worst blockages to bad odours, Buster gets the job done for you ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BTB3D8V5 | | Benefits | Cleans Drain | | Best Sellers Rank | 94 in Grocery ( See Top 100 in Grocery ) 2 in Drain Openers | | Brand | Buster | | Brand Name | Buster | | Country of Origin | United Kingdom | | Customer Reviews | 4.5 out of 5 stars 4,206 Reviews | | Item Form | Liquid | | Item Weight | 600 Grams | | Item weight | 600 Grams | | Liquid Volume | 600 Millilitres | | Manufacturer | Challs International Ltd | | Model Number | 02153/A | | Number of Items | 2 | | Part Number | 02153/A | | Product benefits | Cleans Drain | | Scent | Unscented | | State of Matter | Liquid | | State of matter | Liquid | | Unit Count | 600.0 millilitre | | Unit count | 600.0 millilitre | ## Product Details - **Brand:** Buster - **Item weight:** 600 Grams - **Product benefits:** Cleans Drain - **Scent:** Unscented - **State of matter:** Liquid ## Images ![Bathroom Drain Unblocker (Pack of 2 x 300ml) - Image 1](https://m.media-amazon.com/images/I/613urRUKL7L.jpg) ![Bathroom Drain Unblocker (Pack of 2 x 300ml) - Image 2](https://m.media-amazon.com/images/I/61qJ7v9ekML.jpg) ![Bathroom Drain Unblocker (Pack of 2 x 300ml) - Image 3](https://m.media-amazon.com/images/I/61GsCfduKSL.jpg) ![Bathroom Drain Unblocker (Pack of 2 x 300ml) - Image 4](https://m.media-amazon.com/images/I/61aBdHyQZjL.jpg) ![Bathroom Drain Unblocker (Pack of 2 x 300ml) - Image 5](https://m.media-amazon.com/images/I/61ODDVB+8iL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: will this unblock toilet** A: I believe this product is primarily to unblock bath, sink or shower tray plug holes only. **Q: Can this be used in outside drains?** A: Hi, ive checked the bottle & it says it can be used in all pipes & septic systems. On the front of the bottle it says Bathroom. It is very dangerous to wildlife, so you would need to be careful of pets. I only use half a bottle at a time & it does a fantastic job!! Its wonderful if you have a wetroom. Hope this helps!! **Q: Is this safe to use with a septic tank?** A: Yes it is but please do not exceed recommended dose. **Q: Are your products tested on animals? Legally, products made in the UK are not tested on animals, but the cruelty free logo isnt there.** A: None of our products are tested on animals ## Customer Reviews ### ⭐⭐⭐⭐⭐ The ultimate bathroom drain clearer fast-acting and highly effective *by B***Y on 4 July 2026* Dealing with slow-draining water in the shower or bathroom basin is a common household nuisance, but this Buster Bathroom Drain Unblocker tackles the problem head-on. Unlike generic multi-purpose unblockers, this thick liquid formula is specifically engineered to dissolve the unique culprits found in bathroom plumbing namely tangled hair, soap scum, and greasy sludge. It pours smoothly down the plughole and clings to the blockage effectively rather than just flushing straight through, actively breaking down the obstruction without damaging the underlying pipes. The application process couldn't be simpler or more fuss-free. For regular maintenance or a slow-running drain, you simply pour the recommended dose directly into the plughole, leave it to work its magic, and then flush it through with plenty of hot water. For particularly stubborn or completely standing-water blockages, leaving it to sit slightly longer completely clears the pipework, allowing water to instantly whirlpool down the drain again with zero backing up. Receiving this product as a handy twin pack offers brilliant long-term value for household maintenance. Having a second bottle stored away in the cupboard means you can instantly treat a secondary bathroom basin or use it as a regular monthly preventative treatment to stop soap scum build-up before it turns into a total blockage. It is an industrial-strength, highly reliable solution that completely eliminates the need for awkward mechanical drain snakes or plunger tools, making it an easy five-star recommendation for keeping your plumbing completely clear. ### ⭐⭐⭐⭐⭐ It works ! *by T***D on 13 July 2026* Bought on spec following positive reviews, and very pleased I did. Cheaper than a certain well known and advertised brand too. We have a relatively shallow drop waste from our shower, and have learned from experience with the old bath how quickly soap and associated grit can build up and restrict outflow. So, at the first sign of waste water slowing, I applied the contents of one bottle as directed and left for around four hours before rinsing through with hot water. Results were excellent, and any restrictions were obviously cleared as the shower now drains very quickly and completely.. I didn’t notice any particular odour with the cleaner and it all rinsed away without leaving any residue. I will buy some more in order to use on a regular, preventative basis 👍 ### ⭐⭐⭐⭐ My go to drain unblocker *by K***Y on 17 September 2025* Product is good, it does unblock the kitchen sink but the problem keeps coming back so I tend to buy this product often. It’s the only one I’ve found that works. It’s simple to use and once it does its thing, the water drains away as it should. ## Frequently Bought Together - Buster Bathroom Drain Unblocker 300ml, Pack of 2 – Sink Unblocker Removes Hair & Sludge in Showers, Baths & Sinks. Fast-Acting Shower Drain Unblocker Clears Blockages & Slow-Draining Water - 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? - 🛒 **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.jp/products/516148531-bathroom-drain-unblocker-pack-of-2-x-300ml](https://www.desertcart.jp/products/516148531-bathroom-drain-unblocker-pack-of-2-x-300ml) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-14*