| 8 Products | May 2023 | May 2024 | Change |
| Calgon 4-in-1 Washing Machine Water Softener Tablets Limescale Protection () | £5.82 | £6.07 | + £0.25 4.3% increase |
| | £7.47 | £8.69 | + £1.22 16.3% increase |
| | £5.00 | £6.00 | + £1.00 17.8% increase |
| | £6.00 | £6.00 | £0.00 12% increase |
| | £6.00 | £6.00 | £0.00 9% increase |
| | £5.95 | £5.95 | £0.00 7.4% increase |
| | £6.00 | £6.00 | £0.00 6.1% increase |
| | £6.00 | £6.00 | £0.00 5.3% increase |
| | £4.98 | £4.99 | + £0.01 4.6% increase |
| | £5.00 | £5.00 | £0.00 4.3% increase |
| Calgon 4-in-1 Washing Machine Cleaner Tablets () | £13.82 | £13.16 | - £0.66 -4.8% decrease |
| | £14.20 | £13.95 | - £0.25 -1.8% decrease |
| | £14.49 | £14.00 | - £0.49 -2.6% decrease |
| | £18.50 | £16.00 | - £2.50 -6.9% decrease |
| | £16.00 | £16.00 | £0.00 -5.1% increase |
| | £16.00 | £14.00 | - £2.00 -6.6% decrease |
| | £10.35 | £10.35 | £0.00 -5.8% increase |
| | £9.00 | £9.00 | £0.00 -5.3% increase |
| | £12.00 | £12.00 | £0.00 -4.8% increase |
| Calgon 4-in-1 Washing Machine Water Softener Limescale Protection Gel (750ml) | £7.08 | £6.50 | - £0.58 -8.2% decrease |
| | £10.13 | £6.99 | - £3.14 -31% decrease |
| | £7.00 | £7.00 | £0.00 -18.3% increase |
| | £7.00 | £7.50 | + £0.50 -10.9% increase |
| | £7.00 | £5.00 | - £2.00 -14.9% decrease |
| | £7.00 | £7.00 | £0.00 -12.2% increase |
| | £7.00 | £7.00 | £0.00 -10.2% increase |
| | £6.50 | £6.49 | - £0.01 -9.1% decrease |
| | £5.00 | £5.00 | £0.00 -8.2% increase |
| Calgon Hygiene 13 Tabs () | £6.84 | £6.91 | + £0.07 1% increase |
| | £9.98 | £9.79 | - £0.19 -1.9% decrease |
| | £6.00 | £6.00 | £0.00 -1.1% increase |
| | £4.25 | £4.25 | £0.00 -0.9% increase |
| | £9.99 | £10.49 | + £0.50 0.9% increase |
| | £4.00 | £4.00 | £0.00 1% increase |
| Calgon Hygiene Plus Washing Machine Water Softener () | £13.82 | £15.00 | + £1.18 8.5% increase |
| | £13.00 | £18.00 | + £5.00 38.5% increase |
| | £15.50 | £15.50 | £0.00 17.5% increase |
| | £12.00 | £12.00 | £0.00 12.4% increase |
| | £14.79 | £14.50 | - £0.29 8.5% decrease |
| Calgon Hygiene Tabs Water Softener () | £18.78 | £22.79 | + £4.01 21.4% increase |
| | £16.13 | £22.67 | + £6.54 40.5% increase |
| | £15.95 | £22.69 | + £6.74 41.4% increase |
| | £24.25 | £23.00 | - £1.25 21.4% decrease |
| Calgon 4-in-1 Washing Machine Water Softener Tablets () | £11.30 | £18.50 | + £7.20 63.7% increase |
| | £3.99 | £11.99 | + £8.00 200.5% increase |
| | £18.60 | £25.00 | + £6.40 63.7% 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 |
