| 44 Products | Aug 2025 | Aug 2026 | Change |
| Schweppes Slimline Tonic Water Mini Cans (150ml) | £5.84 | £4.50 | - £1.34 -22.9% decrease |
| | £5.84 | £4.50 | - £1.34 -22.9% decrease |
| Lixir Pink Grapefruit Tonic Water (500ml) | £1.85 | £1.85 | £0.00 No change |
| | £1.85 | £1.85 | £0.00 No change |
| London Essence Co. Grapefruit & Rosemary Tonic Water Cans () | £3.00 | £3.00 | £0.00 No change |
| | £3.00 | £3.00 | £0.00 No change |
| Fever-Tree Light Cucumber Tonic Water (500ml) | £1.80 | £1.80 | £0.00 No change |
| | £1.80 | £1.80 | £0.00 No change |
| Fever-Tree Refreshingly Light Tonic Water (500ml) | £1.72 | £1.50 | - £0.22 -12.8% decrease |
| | £1.72 | £1.50 | - £0.22 -12.8% decrease |
| Fever-Tree Indian Tonic Water (500ml) | £1.82 | £1.60 | - £0.22 -12.1% decrease |
| | £1.82 | £1.60 | - £0.22 -12.1% decrease |
| ASDA Diet Indian Tonic Water with Lime () | £0.65 | £0.68 | + £0.03 4.6% increase |
| | £0.65 | £0.68 | + £0.03 4.6% increase |
| ASDA Indian Tonic Water with a Lemon Flavour Twist Low calorie () | £0.68 | £0.95 | + £0.27 39.7% increase |
| | £0.68 | £0.95 | + £0.27 39.7% increase |
| Fever-Tree Aromatic Tonic Water (500ml) | £1.91 | £1.91 | £0.00 No change |
| | £1.91 | £1.91 | £0.00 No change |
| ASDA Indian Tonic Water with a Lemon Flavour Twist () | £0.68 | £0.97 | + £0.29 42.6% increase |
| | £0.68 | £0.97 | + £0.29 42.6% increase |
