Calgon 4-in-1 Washing Machine Cleaner and Water Softener Tablets, 75 Count , Removes Limescale, Residue, Dirt, Rust & Malodou
Reviewed 9 August 2026 · price checked live
Check price on Amazon →Overview
We track Calgon 4-in-1 Washing Machine Cleaner and Water Softener alongside 24 other home care & cleaning products, comparing it on rating, how many people have rated it and what it currently costs. According to the listing: Up in your washing machine to protect the heating element, pipes and drum of the machine. Washing machine cleaner, removes odours, limescale & residue. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.7 out of 5 from 22,443 ratings. What that score is worth next to its rivals is set out below.
- Brand
- Calgon
- Amazon rating
- 4.7 / 5 from 22,443 ratings
- vs Home Care & Cleaning
- 0.2 above the category median of 4.5
- Rank in category
- 3 of 25 rated home care & cleaning we track
- Price position
- Towards the top of the range (category spans £0.75 to £36.90)
- How proven
- Well established, above-average review volume
How it compares in Home Care & Cleaning
Across the 25 rated home care & cleaning products we track, the typical score is 4.5 out of 5. This one sits at 4.7, which is around the middle of the category. Ratings alone will not separate it from its rivals here, so price and the specifics below matter more than the star count. That places it third of the 25 we rank here.
It carries 22,443 ratings against a category median of 11,175. That is enough of a base to take the score seriously without treating it as settled.
On price it sits in the upper third of a category running from £0.75 to £36.90, where the midpoint is about £9.00. It is priced above the field and rated above it too, so the premium is at least matched by how buyers rate it.
Worked out from the 25 home care & cleaning products in our catalogue, not from the brand's own claims. How we rank →
Key features
- Calgon prevents limescale & rust build-up in your washing machine to protect the heating element, pipes and drum of the machine
- Washing machine cleaner, removes odours, limescale & residue
- Protects and cleans your washing machine by helping to prevent the build-up of limescale
- Allows you to use only the amount of detergent required for soft water
- Helps your washing machine work better for longer, whilst removing bad odours
