| 16 Products | Nov 2025 | Nov 2026 | Change |
| Harpic Limescale Remover Toilet Cleaner (750ml) | £3.92 | £1.75 | - £2.17 -55.4% decrease |
| | £1.64 | £1.79 | + £0.15 9.1% increase |
| | £1.65 | £1.65 | £0.00 4.2% increase |
| | £1.65 | £1.80 | + £0.15 6.1% increase |
| | £2.01 | £1.79 | - £0.22 1.1% decrease |
| | £1.30 | £1.30 | £0.00 1.2% increase |
| | £2.14 | £2.40 | + £0.26 3.5% increase |
| | £2.00 | £1.65 | - £0.35 0% decrease |
| | £18.99 | £1.64 | - £17.35 -55.4% 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) | £1.48 | £1.47 | - £0.01 -0.7% decrease |
| | £1.30 | £1.30 | £0.00 No change |
| | £1.20 | £1.30 | + £0.10 4% increase |
| | £1.30 | £1.30 | £0.00 2.4% increase |
| | £1.51 | £1.30 | - £0.21 -2.3% decrease |
| | £2.35 | £2.35 | £0.00 -1.3% increase |
| | £1.55 | £1.55 | £0.00 -1.3% increase |
| | £1.19 | £1.19 | £0.00 -1.3% increase |
| | £1.40 | £1.50 | + £0.10 -0.7% 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 () | £1.96 | £1.94 | - £0.02 -1% decrease |
| | £0.99 | £0.99 | £0.00 No change |
| | £1.05 | £1.05 | £0.00 No change |
| | £1.63 | £1.50 | - £0.13 -3.3% decrease |
| | £1.60 | £1.65 | + £0.05 -1.5% increase |
| | £2.10 | £2.10 | £0.00 -0.7% increase |
| | £4.36 | £4.36 | £0.00 -1% increase |
| Harpic Power Plus Max Citrus Fresh Toilet Cleaner Gel (750ml) | £1.79 | £1.95 | + £0.16 8.9% increase |
| | £1.59 | £1.78 | + £0.19 11.9% increase |
| | £1.65 | £1.80 | + £0.15 10.5% increase |
| | £1.95 | £1.95 | £0.00 6.4% increase |
| | £1.75 | £1.79 | + £0.04 5.2% increase |
| | £1.98 | £2.40 | + £0.42 9% increase |
| | £1.83 | £2.00 | + £0.17 8.9% increase |
| Harpic Power Plus Toilet Cleaner Gel Original Scent (750ml) | £1.73 | £1.82 | + £0.09 5.2% increase |
| | £1.59 | £1.78 | + £0.19 11.9% increase |
| | £1.65 | £1.80 | + £0.15 10.5% increase |
| | £1.65 | £1.80 | + £0.15 9.8% increase |
| | £1.80 | £1.79 | - £0.01 7.2% decrease |
| | £1.95 | £1.95 | £0.00 5.2% 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) | £1.85 | £1.86 | + £0.01 0.5% increase |
| | £1.68 | £1.74 | + £0.06 3.6% increase |
| | £2.60 | £2.60 | £0.00 1.4% increase |
| | £1.00 | £1.00 | £0.00 1.1% increase |
| | £2.10 | £2.10 | £0.00 0.5% increase |
