| 16 Products | Sep 2025 | Sep 2026 | Change |
| Harpic Limescale Remover Toilet Cleaner (750ml) | £3.78 | £1.72 | - £2.06 -54.5% decrease |
| | £1.00 | £1.79 | + £0.79 79% increase |
| | £1.65 | £1.65 | £0.00 29.3% increase |
| | £1.65 | £1.65 | £0.00 18.9% increase |
| | £1.65 | £1.65 | £0.00 13.4% increase |
| | £1.30 | £1.30 | £0.00 11% increase |
| | £1.98 | £2.40 | + £0.42 13% increase |
| | £2.00 | £1.65 | - £0.35 8.1% decrease |
| | £18.99 | £1.64 | - £17.35 -54.5% decrease |
| Harpic Power Plus Regular Toilet Cleaner 8 Tablets () | £2.87 | £2.87 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
| | £3.00 | £3.00 | £0.00 No change |
| | £1.99 | £1.99 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
| Harpic Active Fresh Toilet Cleaner Gel Pine Scent (750ml) | £1.43 | £1.47 | + £0.04 2.8% increase |
| | £1.30 | £1.30 | £0.00 No change |
| | £1.20 | £1.30 | + £0.10 4% increase |
| | £1.25 | £1.30 | + £0.05 4% increase |
| | £1.30 | £1.30 | £0.00 3.2% increase |
| | £2.35 | £2.35 | £0.00 2% increase |
| | £1.55 | £1.55 | £0.00 2% increase |
| | £1.19 | £1.19 | £0.00 1.4% increase |
| | £1.30 | £1.50 | + £0.20 2.8% increase |
| Harpic Active Fresh 6 Rim Block Citrus Toilet Cleaner () | £2.31 | £2.31 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| | £1.00 | £1.00 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| | £2.30 | £2.30 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| | £4.47 | £4.47 | £0.00 No change |
| Harpic White & Shine Bleach Citrus Toilet Cleaner Gel (750ml) | £1.93 | £1.94 | + £0.01 0.5% increase |
| | £0.99 | £0.99 | £0.00 No change |
| | £1.05 | £1.05 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| | £1.60 | £1.65 | + £0.05 0.8% increase |
| | £2.10 | £2.10 | £0.00 0.7% increase |
| | £4.36 | £4.36 | £0.00 0.5% increase |
| Harpic Power Plus Max Citrus Fresh Toilet Cleaner Gel (750ml) | £1.81 | £1.93 | + £0.12 6.6% increase |
| | £1.62 | £1.78 | + £0.16 9.9% increase |
| | £1.65 | £1.80 | + £0.15 9.1% increase |
| | £1.95 | £1.95 | £0.00 5.7% increase |
| | £1.65 | £1.65 | £0.00 4.7% increase |
| | £1.98 | £2.40 | + £0.42 8.5% increase |
| | £2.00 | £2.00 | £0.00 6.6% increase |
| Harpic Power Plus Toilet Cleaner Gel Original Scent (750ml) | £1.70 | £1.77 | + £0.07 4.1% increase |
| | £1.62 | £1.78 | + £0.16 9.9% increase |
| | £1.65 | £1.80 | + £0.15 9.1% increase |
| | £1.65 | £1.65 | £0.00 6.1% increase |
| | £1.65 | £1.65 | £0.00 4.9% increase |
| | £1.95 | £1.95 | £0.00 4.1% increase |
| Harpic Active Fresh 6 Rim Block Lavender Toilet Cleaner (40g) | £1.74 | £1.74 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| Harpic PowerPlus Citrus Active Tablets () | £3.10 | £3.10 | £0.00 No change |
| | £2.50 | £2.50 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
| | £3.00 | £3.00 | £0.00 No change |
| | £3.00 | £3.00 | £0.00 No change |
| | £3.50 | £3.50 | £0.00 No change |
| Harpic Blue Power 6 Rim Block (35g) | £1.79 | £1.86 | + £0.07 3.9% increase |
| | £1.46 | £1.74 | + £0.28 19.2% increase |
| | £2.60 | £2.60 | £0.00 6.9% increase |
| | £1.00 | £1.00 | £0.00 5.3% increase |
| | £2.10 | £2.10 | £0.00 3.9% increase |
