| 29 Products | May 2025 | May 2026 | Change |
| Schweppes Slimline Tonic Water Mini Cans (150ml) | £6.20 | £6.50 | + £0.30 4.8% increase |
| | £6.20 | £6.50 | + £0.30 4.8% increase |
| London Essence Co. Grapefruit & Rosemary Tonic Water Cans () | £4.25 | £4.25 | £0.00 No change |
| | £4.25 | £4.25 | £0.00 No change |
| Fever-Tree Light Cucumber Tonic Water (500ml) | £2.20 | £1.95 | - £0.25 -11.4% decrease |
| | £2.20 | £1.95 | - £0.25 -11.4% decrease |
| Fever-Tree Refreshingly Light Tonic Water (500ml) | £2.20 | £1.95 | - £0.25 -11.4% decrease |
| | £2.20 | £1.95 | - £0.25 -11.4% decrease |
| Fever-Tree Indian Tonic Water (500ml) | £2.30 | £2.05 | - £0.25 -10.9% decrease |
| | £2.30 | £2.05 | - £0.25 -10.9% decrease |
| Fever-Tree Light Mediterranean Tonic Cans (150ml) | £9.00 | £9.25 | + £0.25 2.8% increase |
| | £9.00 | £9.25 | + £0.25 2.8% increase |
| Waitrose Ltd Essential Sugar Free Indian Tonic Water (250ml) | £2.25 | £2.25 | £0.00 No change |
| | £2.25 | £2.25 | £0.00 No change |
| Fentimans Premium Indian Tonic Water (500ml) | £1.70 | £1.70 | £0.00 No change |
| | £1.70 | £1.70 | £0.00 No change |
| Fever-Tree Aromatic Tonic Water (500ml) | £1.90 | £1.90 | £0.00 No change |
| | £1.90 | £1.90 | £0.00 No change |
| London Essence Co. Orange & Elderflower Tonic Water Cans (150ml) | £3.63 | £3.00 | - £0.63 -17.4% decrease |
| | £3.63 | £3.00 | - £0.63 -17.4% decrease |
