| 51 Products | Jul 2025 | Jul 2026 | Change |
| San Pellegrino Sparkling Natural Mineral Water Glass 6x250 ML (250ml) | £3.25 | £4.20 | + £0.95 29.2% increase |
| | £3.25 | £4.20 | + £0.95 29.2% increase |
| Buxton Still Natural Mineral Water Bottles (1.5l) | £4.50 | £3.50 | - £1.00 -22.2% decrease |
| | £4.50 | £3.50 | - £1.00 -22.2% decrease |
| Volvic Natural Mineral Water Bottles (500ml) | £2.00 | £2.00 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
| Buxton Still Natural Mineral Water (1.5l) | £1.50 | £1.50 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| Highland Spring Sparkling Water (500ml) | £3.25 | £3.40 | + £0.15 4.6% increase |
| | £3.25 | £3.40 | + £0.15 4.6% increase |
| Nestle Pure Life Still Spring Water (500ml) | £2.80 | £2.80 | £0.00 No change |
| | £2.80 | £2.80 | £0.00 No change |
| Buxton Sparkling Natural Mineral Water (500ml) | £2.10 | £2.10 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| Waitrose Ltd Essential Sparkling Natural Mineral Water 4x2litre () | £2.20 | £2.30 | + £0.10 4.5% increase |
| | £2.20 | £2.30 | + £0.10 4.5% increase |
| Evian Still Mineral Water 6x50cl Bottles (500ml) | £3.60 | £3.70 | + £0.10 2.8% increase |
| | £3.60 | £3.70 | + £0.10 2.8% increase |
| Waitrose Ltd Essential Sparkling Natural Mineral Water (500ml) | £2.00 | £2.00 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
