| 8 Products | May 2023 | May 2024 | Change |
| Harpic Limescale Remover Toilet Cleaner (750ml) | £1.30 | £1.50 | + £0.20 15.4% increase |
| | £1.30 | £1.50 | + £0.20 15.4% increase |
| Harpic Power Plus Regular Toilet Cleaner 8 Tablets () | £3.50 | £3.50 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
| Harpic Power Plus Toilet Cleaner Gel Original Scent (750ml) | £1.75 | £1.30 | - £0.45 -25.7% decrease |
| | £1.75 | £1.30 | - £0.45 -25.7% decrease |
| Harpic White & Shine Bleach Citrus Toilet Cleaner Gel (750ml) | £0.99 | £0.99 | £0.00 No change |
| | £0.99 | £0.99 | £0.00 No change |
| Harpic Active Fresh Toilet Cleaner Gel Pine Scent (750ml) | £1.30 | £1.30 | £0.00 No change |
| | £1.30 | £1.30 | £0.00 No change |
| Harpic Active Fresh 6 Rim Block Citrus Toilet Cleaner (40g) | £1.00 | £1.00 | £0.00 No change |
| | £1.00 | £1.00 | £0.00 No change |
| Harpic Power Plus Max Citrus Fresh Toilet Cleaner Gel (750ml) | £1.75 | £1.50 | - £0.25 -14.3% decrease |
| | £1.75 | £1.50 | - £0.25 -14.3% decrease |
| Harpic PowerPlus Citrus Active Tablets () | £3.50 | £3.50 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
