Mr Muscle Drain Unblocker Liquid (2 x 500ml), Sink & Drain Cleaner, Strong & Fast Acting Heavy Duty Drain Gel, Dissolves Clog
Reviewed 9 August 2026 · price checked live
Check price on Amazon →Overview
We track Mr Muscle Drain Unblocker Liquid (2 x 500ml), Sink alongside 49 other cleaning supplies products, comparing it on rating, how many people have rated it and what it currently costs. According to the listing: 500ml Twin Pack provides up to 2 doses, with each dose typically using 500ml for effective drain unblocking. Sink power unblocker to destroy the toughest clogs in your drain. 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 30,184 ratings. What that score is worth next to its rivals is set out below.
- Brand
- Mr Muscle
- Amazon rating
- 4.5 / 5 from 30,184 ratings
- vs Cleaning Supplies
- 0.1 below the category median of 4.6
- Rank in category
- 40 of 50 rated cleaning supplies we track
- Price position
- Towards the top of the range (category spans £1.00 to £39.67)
- How proven
- One of the most-reviewed in its category
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 30,184 ratings against a category median of 4,852. A rating from a large base is harder to distort and tends to hold up over time, so a high score here means more than the same score on a new listing.
On price it sits in the upper third of a category running from £1.00 to £39.67, where the midpoint is about £5.38. Paying above the category norm needs a reason beyond the rating, because the score alone does not justify the gap here.
Worked out from the 50 cleaning supplies products in our catalogue, not from the brand's own claims. How we rank →
Key features
- 500ml Twin Pack provides up to 2 doses, with each dose typically using 500ml for effective drain unblocking
- Sink power unblocker to destroy the toughest clogs in your drain
- Blocked drain cleaner for dissolving clogs caused by debris in sinks, plugholes and pipes
- 3x more effective than bleach as a pipe unblocker based on hair removal in laboratory testing
- Cuts through standing water to unblock plugholes
- Mr Muscle drain unblocker is safe for use on all types of pipes
