| 8 Products | Apr 2024 | Apr 2025 | Change |
| Calgon 4-in-1 Washing Machine Water Softener Limescale Protection Gel (750ml) | £6.68 | £7.30 | + £0.62 9.3% increase |
| | £5.00 | £5.00 | £0.00 No change |
| | £7.00 | £7.00 | £0.00 No change |
| | £7.00 | £7.00 | £0.00 No change |
| | £7.50 | £7.50 | £0.00 No change |
| | £6.18 | £7.35 | + £1.17 3.5% increase |
| | £7.00 | £7.00 | £0.00 3% increase |
| | £6.97 | £9.99 | + £3.02 9% increase |
| | £6.49 | £6.49 | £0.00 8% increase |
| | £6.99 | £8.39 | + £1.40 9.3% increase |
| Calgon 4-in-1 Washing Machine Water Softener Tablets Limescale Protection () | £6.10 | £5.94 | - £0.16 -2.6% decrease |
| | £6.00 | £4.98 | - £1.02 -17% decrease |
| | £6.00 | £6.00 | £0.00 -8.5% increase |
| | £6.00 | £6.00 | £0.00 -5.7% increase |
| | £6.00 | £6.00 | £0.00 -4.2% increase |
| | £5.95 | £5.95 | £0.00 -3.3% increase |
| | £5.00 | £5.00 | £0.00 -2.9% increase |
| | £6.00 | £6.00 | £0.00 -2.6% increase |
| | £4.99 | £4.99 | £0.00 -2.1% increase |
| | £8.96 | £8.51 | - £0.45 -2.6% decrease |
| Calgon 4-in-1 Washing Machine Cleaner Tablets () | £13.23 | £13.32 | + £0.09 0.7% increase |
| | £14.00 | £16.00 | + £2.00 14.3% increase |
| | £12.00 | £12.00 | £0.00 7.7% increase |
| | £16.00 | £16.00 | £0.00 4.8% increase |
| | £9.00 | £9.00 | £0.00 3.9% increase |
| | £10.35 | £10.35 | £0.00 3.3% increase |
| | £16.00 | £21.00 | + £5.00 9.1% increase |
| | £14.00 | £13.82 | - £0.18 7.4% decrease |
| | £14.47 | £8.39 | - £6.08 0.7% decrease |
| | £6.91 | £6.74 | - £0.17 -2.5% decrease |
| | £4.25 | £4.25 | £0.00 No change |
| | £4.00 | £4.00 | £0.00 No change |
| | £6.00 | £6.00 | £0.00 No change |
| | £9.79 | £8.95 | - £0.84 -3.5% decrease |
| | £10.49 | £10.49 | £0.00 -2.5% increase |
| Calgon Hygiene Plus Washing Machine Water Softener () | £15.00 | £19.17 | + £4.17 27.8% increase |
| | £12.00 | £12.00 | £0.00 No change |
| | £15.50 | £15.50 | £0.00 No change |
| | £18.00 | £14.50 | - £3.50 -7.7% decrease |
| | £14.50 | £34.67 | + £20.17 27.8% increase |
| Calgon 4-in-1 Washing Machine Water Softener Tablets () | £20.10 | £18.31 | - £1.79 -8.9% decrease |
| | £25.00 | £22.00 | - £3.00 -12% decrease |
| | £23.32 | £20.93 | - £2.39 -11.1% decrease |
| | £11.99 | £11.99 | £0.00 -8.9% increase |
| Calgon Hygiene Tabs Water Softener () | £22.44 | £23.62 | + £1.18 5.3% increase |
| | £23.00 | £25.50 | + £2.50 10.9% increase |
| | £21.94 | £22.37 | + £0.43 6.5% increase |
| | £22.39 | £22.99 | + £0.60 5.3% increase |
| Calgon 3-in-1 Washing Machine Water Softener Limescale Protection (750ml) | £12.40 | £12.40 | £0.00 No change |
| | £12.40 | £12.40 | £0.00 No change |
