| 9 Products | May 2023 | May 2024 | Change |
| Harpic Limescale Remover Toilet Cleaner (750ml) | £1.30 | £1.30 | £0.00 No change |
| | £1.30 | £1.30 | £0.00 No change |
| Harpic Power Plus Regular Toilet Cleaner 8 Tablets () | £3.70 | £3.00 | - £0.70 -18.9% decrease |
| | £3.70 | £3.00 | - £0.70 -18.9% decrease |
| Harpic Sparkling Citrus (35g) | £2.60 | £2.60 | £0.00 No change |
| | £2.60 | £2.60 | £0.00 No change |
| Harpic Power Plus Toilet Cleaner Gel Original Scent (750ml) | £1.95 | £1.95 | £0.00 No change |
| | £1.95 | £1.95 | £0.00 No change |
| Harpic White & Shine Bleach Citrus Toilet Cleaner Gel (750ml) | £1.60 | £1.60 | £0.00 No change |
| | £1.60 | £1.60 | £0.00 No change |
| Harpic Active Fresh Toilet Cleaner Gel Pine Scent (750ml) | £1.38 | £1.50 | + £0.12 8.7% increase |
| | £1.38 | £1.50 | + £0.12 8.7% increase |
| Harpic Active Blue Water 6 Powers Atlantic Burst (39g) | £2.60 | £2.60 | £0.00 No change |
| | £2.60 | £2.60 | £0.00 No change |
| Harpic Power Plus Max Citrus Fresh Toilet Cleaner Gel (750ml) | £1.70 | £1.65 | - £0.05 -2.9% decrease |
| | £1.70 | £1.65 | - £0.05 -2.9% decrease |
| Harpic PowerPlus Citrus Active Tablets () | £3.23 | £3.00 | - £0.23 -7.1% decrease |
| | £3.23 | £3.00 | - £0.23 -7.1% decrease |
