| 16 Products | Nov 2024 | Nov 2025 | Change |
| Harpic Limescale Remover Toilet Cleaner (750ml) | £3.85 | £3.98 | + £0.13 3.4% increase |
| | £1.00 | £1.64 | + £0.64 64% increase |
| | £1.50 | £1.65 | + £0.15 32% increase |
| | £1.05 | £1.65 | + £0.60 39.8% increase |
| | £1.50 | £1.65 | + £0.15 31% increase |
| | £1.30 | £1.30 | £0.00 24.4% increase |
| | £2.00 | £1.65 | - £0.35 14.4% decrease |
| | £2.00 | £2.00 | £0.00 11.5% increase |
| | £18.99 | £18.99 | £0.00 4.1% increase |
| | £5.29 | £5.29 | £0.00 3.4% increase |
| Harpic Power Plus Regular Toilet Cleaner 8 Tablets () | £3.30 | £4.44 | + £1.14 34.5% increase |
| | £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 |
| | £6.67 | £16.99 | + £10.32 34.5% increase |
| Harpic Active Fresh Toilet Cleaner Gel Pine Scent (750ml) | £1.91 | £1.50 | - £0.41 -21.5% decrease |
| | £1.30 | £1.30 | £0.00 No change |
| | £1.20 | £1.20 | £0.00 No change |
| | £1.25 | £1.30 | + £0.05 1.6% increase |
| | £1.25 | £1.30 | + £0.05 2.4% increase |
| | £2.35 | £2.35 | £0.00 1.4% increase |
| | £1.50 | £1.55 | + £0.05 1.4% increase |
| | £1.19 | £1.19 | £0.00 2.1% increase |
| | £1.50 | £1.30 | - £0.20 0% decrease |
| | £5.64 | £1.99 | - £3.65 -21.5% decrease |
| Harpic Active Fresh 6 Rim Block Citrus Toilet Cleaner () | £2.68 | £3.83 | + £1.15 42.9% increase |
| | £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 |
| | £1.80 | £2.10 | + £0.30 2.6% increase |
| | £4.47 | £4.47 | £0.00 1.8% increase |
| | £5.58 | £14.45 | + £8.87 42.9% increase |
| Harpic White & Shine Bleach Citrus Toilet Cleaner Gel (750ml) | £2.33 | £2.87 | + £0.54 23.2% 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 | £1.60 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| | £4.36 | £4.36 | £0.00 No change |
| | £4.69 | £8.48 | + £3.79 23.2% increase |
| Harpic Power Plus Max Citrus Fresh Toilet Cleaner Gel (750ml) | £2.22 | £3.19 | + £0.97 43.7% increase |
| | £1.58 | £1.56 | - £0.02 -1.3% decrease |
| | £1.65 | £1.65 | £0.00 -0.6% increase |
| | £1.95 | £1.95 | £0.00 -0.6% increase |
| | £1.50 | £1.65 | + £0.15 1.8% increase |
| | £2.10 | £1.65 | - £0.45 -4% decrease |
| | £2.00 | £1.65 | - £0.35 -6.1% decrease |
| | £4.75 | £12.20 | + £7.45 43.7% increase |
| Harpic Power Plus Toilet Cleaner Gel Original Scent (750ml) | £2.04 | £2.33 | + £0.29 14.2% increase |
| | £1.58 | £1.56 | - £0.02 -1.3% decrease |
| | £1.30 | £1.65 | + £0.35 11.8% increase |
| | £1.50 | £1.65 | + £0.15 11% increase |
| | £1.50 | £1.65 | + £0.15 10.9% increase |
| | £1.95 | £1.95 | £0.00 7.6% increase |
| | £4.43 | £5.49 | + £1.06 14.2% increase |
| Harpic Active Fresh 6 Rim Block Lavender Toilet Cleaner (40g) | £2.94 | £2.34 | - £0.60 -20.4% decrease |
| | £1.50 | £1.50 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| | £2.10 | £2.10 | £0.00 No change |
| | £1.80 | £1.50 | - £0.30 -4.3% decrease |
| | £4.49 | £1.50 | - £2.99 -27.5% decrease |
| | £5.63 | £5.34 | - £0.29 -20.4% decrease |
| Harpic PowerPlus Citrus Active Tablets () | £3.80 | £3.80 | £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 |
| | £7.29 | £7.29 | £0.00 No change |
| Harpic Sparkling Citrus (35g) | £5.88 | £5.88 | £0.00 No change |
| | £2.60 | £2.60 | £0.00 No change |
| | £2.50 | £2.50 | £0.00 No change |
| | £11.84 | £11.84 | £0.00 No change |
| | £6.56 | £6.56 | £0.00 No change |
