Buster Bathroom Drain Unblocker (Pack of 2 x 300ml) Fast-Acting Sink Unblocker Dissolves Hair, Sludge and Soap, Drain Cleaner
Reviewed 23 August 2026 · price checked live
Check price on Amazon →Overview
Buster Bathroom Drain Unblocker (Pack of 2 x sits in our cleaning supplies listings, where we rank by how buyers actually rate a product rather than by brand. The manufacturer says: 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 nast. FLOWING DRAINS IN 15 MINUTES - it doesn't matter if it's slow draining water or a full blockage. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.5 out of 5 from 6,586 ratings. What that score is worth next to its rivals is set out below.
- Brand
- Buster
- Amazon rating
- 4.5 / 5 from 6,586 ratings
- vs Cleaning Supplies
- 0.1 below the category median of 4.6
- Rank in category
- 38 of 50 rated cleaning supplies we track
- Price position
- Mid-priced (category spans £1.00 to £33.29)
- How proven
- Moderate review volume
How it compares in Cleaning Supplies
Across the 50 rated cleaning supplies products we track, the typical score is 4.6 out of 5. This one sits at 4.5, which is in the bottom quarter of the category. That does not make it a bad buy, but there are better-rated alternatives on the same shelf, so it needs another reason to earn your money.
It carries 6,586 ratings against a category median of 4,852. That is enough of a base to take the score seriously without treating it as settled.
On price it sits in the middle third of a category running from £1.00 to £33.29, where the midpoint is about £4.69. That is the part of the range where most sensible buys sit, neither cutting corners nor paying for the name.
Worked out from the 50 cleaning supplies products in our catalogue, not from the brand's own claims. How we rank →
Key features
- 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
