| 7 Products | Mar 2025 | Mar 2026 | Change |
| Calgon 4-in-1 Washing Machine Water Softener Limescale Protection Gel (750ml) | £7.01 | £6.23 | - £0.78 -11.1% decrease |
| | £5.00 | £5.00 | £0.00 No change |
| | £7.00 | £7.00 | £0.00 No change |
| | £7.00 | £7.00 | £0.00 No change |
| | £6.25 | £5.00 | - £1.25 -4.9% decrease |
| | £7.35 | £7.35 | £0.00 -3.8% increase |
| | £7.00 | £7.00 | £0.00 -3.2% increase |
| | £9.99 | £5.00 | - £4.99 -12.6% decrease |
| | £6.49 | £6.49 | £0.00 -11.1% increase |
| Calgon 4-in-1 Washing Machine Cleaner Tablets () | £13.62 | £13.48 | - £0.14 -1% decrease |
| | £16.00 | £15.98 | - £0.02 -0.1% decrease |
| | £12.00 | £12.00 | £0.00 -0.1% increase |
| | £16.00 | £16.00 | £0.00 -0.1% increase |
| | £9.00 | £9.00 | £0.00 No change |
| | £10.35 | £10.35 | £0.00 No change |
| | £16.00 | £21.00 | + £5.00 6.3% increase |
| | £15.99 | £10.00 | - £5.99 -1% decrease |
| Calgon Hygiene Tabs Water Softener () | £5.80 | £5.91 | + £0.11 1.9% 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 |
| | £8.95 | £9.39 | + £0.44 1.9% increase |
| Calgon Hygiene Plus Washing Machine Water Softener () | £15.17 | £12.83 | - £2.34 -15.4% decrease |
| | £12.00 | £12.00 | £0.00 No change |
| | £15.50 | £15.50 | £0.00 No change |
| | £18.00 | £11.00 | - £7.00 -15.4% decrease |
| Calgon 4-in-1 Washing Machine Water Softener Tablets () | £22.97 | £15.50 | - £7.47 -32.5% decrease |
| | £25.00 | £18.00 | - £7.00 -28% decrease |
| | £20.93 | £12.99 | - £7.94 -32.5% decrease |
| Calgon Hygiene Tabs Water Softener () | £22.85 | £21.00 | - £1.85 -8.1% decrease |
| | £23.00 | £25.50 | + £2.50 10.9% increase |
| | £22.69 | £16.49 | - £6.20 -8.1% decrease |
| Calgon washing machine cleaner tablets limescale protection 45 tablets () | £12.40 | £16.00 | + £3.60 29% increase |
| | £12.40 | £16.00 | + £3.60 29% increase |
