| 22 Products | Jan 2025 | Jan 2026 | Change |
| Highland Spring Sparkling Water Pear & Elderflower (330ml) | £3.25 | £3.25 | £0.00 No change |
| | £3.25 | £3.25 | £0.00 No change |
| Highland Spring Sparkling Water (500ml) | £3.00 | £3.15 | + £0.15 5% increase |
| | £3.00 | £3.15 | + £0.15 5% increase |
| Buxton Sparkling Natural Mineral Water (500ml) | £2.10 | £2.10 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| Northumbria Spring Sparkling Spring Water () | £5.50 | £5.50 | £0.00 No change |
| | £5.50 | £5.50 | £0.00 No change |
| San Pellegrino Sparkling Natural Mineral Water Bottles 4x500 ML (500ml) | £2.13 | £2.13 | £0.00 No change |
| | £2.13 | £2.13 | £0.00 No change |
| Tesco Elmhurst Natural Mineral Sparkling Water 4x2ltr () | £2.00 | £1.95 | - £0.05 -2.5% decrease |
| | £2.00 | £1.95 | - £0.05 -2.5% decrease |
| Highland Spring Eco Sparkling Mineral Water (1.5l) | £1.10 | £1.25 | + £0.15 13.6% increase |
| | £1.10 | £1.25 | + £0.15 13.6% increase |
| San Pellegrino Sparkling Natural Mineral Water (500ml) | £1.40 | £1.50 | + £0.10 7.1% increase |
| | £1.40 | £1.50 | + £0.10 7.1% increase |
| Tesco Elmhurst English Natural Mineral Sparkling Water () | £0.88 | £0.85 | - £0.03 -3.4% decrease |
| | £0.88 | £0.85 | - £0.03 -3.4% decrease |
| San Pellegrino Sparkling Natural Mineral Water Glass (750ml) | £1.75 | £2.00 | + £0.25 14.3% increase |
| | £1.75 | £2.00 | + £0.25 14.3% increase |
