| 22 Products | Jul 2025 | Jul 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) | £3.15 | £3.25 | + £0.10 3.2% increase |
| | £3.15 | £3.25 | + £0.10 3.2% 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 () | £1.75 | £2.00 | + £0.25 14.3% increase |
| | £1.75 | £2.00 | + £0.25 14.3% increase |
| Highland Spring Eco Sparkling Mineral Water (1.5l) | £1.25 | £1.35 | + £0.10 8% increase |
| | £1.25 | £1.35 | + £0.10 8% increase |
| San Pellegrino Sparkling Natural Mineral Water (500ml) | £1.55 | £1.50 | - £0.05 -3.2% decrease |
| | £1.55 | £1.50 | - £0.05 -3.2% decrease |
| Tesco Elmhurst English Natural Mineral Sparkling Water () | £0.85 | £0.90 | + £0.05 5.9% increase |
| | £0.85 | £0.90 | + £0.05 5.9% increase |
| San Pellegrino Sparkling Natural Mineral Water Glass (750ml) | £2.00 | £2.00 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
