| 10 Products | May 2023 | May 2024 | Change |
| Harpic Limescale Remover Toilet Cleaner (750ml) | £1.00 | £1.00 | £0.00 No change |
| | £1.00 | £1.00 | £0.00 No change |
| Harpic Power Plus Regular Toilet Cleaner 8 Tablets (25g) | £3.00 | £3.00 | £0.00 No change |
| | £3.00 | £3.00 | £0.00 No change |
| Harpic Power Plus Toilet Cleaner Gel Original Scent (750ml) | £1.30 | £1.65 | + £0.35 26.9% increase |
| | £1.30 | £1.65 | + £0.35 26.9% increase |
| 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) | £1.50 | £2.10 | + £0.60 40% increase |
| | £1.50 | £2.10 | + £0.60 40% increase |
| Harpic Active Fresh 6 Rim Block Lavender Toilet Cleaner (40g) | £1.50 | £1.50 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| Harpic Active Blue Water 6 Powers Atlantic Burst (39g) | £1.50 | £1.50 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| Harpic Active Fresh Pink Blossom (750ml) | £1.30 | £1.30 | £0.00 No change |
| | £1.30 | £1.30 | £0.00 No change |
| Harpic Power Plus Max Citrus Fresh Toilet Cleaner Gel (750ml) | £1.30 | £1.30 | £0.00 No change |
| | £1.30 | £1.30 | £0.00 No change |
| Harpic PowerPlus Citrus Active Tablets () | £2.50 | £2.50 | £0.00 No change |
| | £2.50 | £2.50 | £0.00 No change |
