| 8 Products | Mar 2024 | Mar 2025 | Change |
| Calgon 4-in-1 Washing Machine Water Softener Limescale Protection Gel (750ml) | £6.82 | £7.02 | + £0.20 2.9% 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 | £5.00 | - £2.50 -9.5% decrease |
| | £7.35 | £7.35 | £0.00 -7.4% increase |
| | £7.00 | £7.00 | £0.00 -6.2% increase |
| | £6.60 | £9.99 | + £3.39 1.9% increase |
| | £6.49 | £6.49 | £0.00 1.6% increase |
| | £7.42 | £8.39 | + £0.97 2.9% increase |
| Calgon 4-in-1 Washing Machine Water Softener Tablets Limescale Protection () | £5.94 | £5.81 | - £0.13 -2.2% decrease |
| | £6.00 | £5.94 | - £0.06 -1% decrease |
| | £6.00 | £6.00 | £0.00 -0.5% increase |
| | £6.00 | £6.00 | £0.00 -0.3% increase |
| | £6.00 | £6.00 | £0.00 -0.2% increase |
| | £5.95 | £5.95 | £0.00 -0.2% increase |
| | £5.00 | £5.00 | £0.00 -0.2% increase |
| | £6.00 | £6.00 | £0.00 -0.2% increase |
| | £4.99 | £4.99 | £0.00 No change |
| | £7.52 | £6.39 | - £1.13 -2.2% decrease |
| Calgon 4-in-1 Washing Machine Cleaner Tablets () | £14.19 | £13.17 | - £1.02 -7.2% decrease |
| | £16.00 | £16.00 | £0.00 No change |
| | £12.00 | £12.00 | £0.00 No change |
| | £16.00 | £16.00 | £0.00 No change |
| | £9.00 | £9.00 | £0.00 No change |
| | £10.35 | £10.35 | £0.00 No change |
| | £21.00 | £16.00 | - £5.00 -5.9% decrease |
| | £15.24 | £16.00 | + £0.76 -4.3% increase |
| | £13.95 | £9.99 | - £3.96 -7.2% decrease |
| | £6.55 | £6.74 | + £0.19 2.9% increase |
| | £4.25 | £4.25 | £0.00 No change |
| | £4.00 | £4.00 | £0.00 No change |
| | £6.00 | £6.00 | £0.00 No change |
| | £7.99 | £8.95 | + £0.96 4.3% increase |
| | £10.49 | £10.49 | £0.00 2.9% increase |
| Calgon Hygiene Plus Washing Machine Water Softener () | £14.13 | £20.04 | + £5.91 41.8% increase |
| | £12.00 | £12.00 | £0.00 No change |
| | £15.50 | £15.50 | £0.00 No change |
| | £14.50 | £18.00 | + £3.50 8.4% increase |
| | £14.50 | £34.67 | + £20.17 41.8% increase |
| Calgon 4-in-1 Washing Machine Water Softener Tablets () | £20.18 | £19.31 | - £0.87 -4.3% decrease |
| | £22.00 | £25.00 | + £3.00 13.6% increase |
| | £26.54 | £20.93 | - £5.61 -5.4% decrease |
| | £11.99 | £11.99 | £0.00 -4.3% increase |
| Calgon Hygiene Tabs Water Softener () | £22.68 | £22.80 | + £0.12 0.5% increase |
| | £25.50 | £23.00 | - £2.50 -9.8% decrease |
| | £22.26 | £22.40 | + £0.14 -4.9% increase |
| | £20.29 | £22.99 | + £2.70 0.5% 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 |
