| 16 Products | Apr 2024 | Apr 2025 | Change |
| Harpic Limescale Remover Toilet Cleaner (750ml) | £3.86 | £3.85 | - £0.01 -0.3% decrease |
| | £1.00 | £1.00 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| | £1.05 | £1.05 | £0.00 No change |
| | £1.95 | £1.50 | - £0.45 -8.7% decrease |
| | £1.30 | £1.30 | £0.00 -6.6% increase |
| | £1.30 | £2.00 | + £0.70 3% increase |
| | £2.35 | £2.00 | - £0.35 -0.7% decrease |
| | £18.99 | £18.99 | £0.00 -0.3% increase |
| | £5.29 | £5.29 | £0.00 -0.3% increase |
| Harpic Power Plus Regular Toilet Cleaner 8 Tablets () | £2.89 | £3.30 | + £0.41 14.2% increase |
| | £3.00 | £3.50 | + £0.50 16.7% increase |
| | £3.50 | £3.50 | £0.00 7.7% increase |
| | £3.50 | £3.50 | £0.00 5.1% increase |
| | £2.00 | £2.00 | £0.00 4.3% increase |
| | £2.00 | £2.00 | £0.00 3.6% increase |
| | £3.00 | £3.00 | £0.00 3.2% increase |
| | £1.99 | £1.99 | £0.00 2.6% increase |
| | £3.50 | £3.50 | £0.00 2.1% increase |
| | £3.49 | £6.67 | + £3.18 14.2% increase |
| Harpic Active Fresh Toilet Cleaner Gel Pine Scent (750ml) | £1.93 | £1.91 | - £0.02 -1% decrease |
| | £1.30 | £1.30 | £0.00 No change |
| | £1.30 | £1.20 | - £0.10 -3.8% decrease |
| | £1.30 | £1.25 | - £0.05 -3.8% decrease |
| | £1.40 | £1.25 | - £0.15 -6% decrease |
| | £2.35 | £2.35 | £0.00 -3.9% increase |
| | £1.38 | £1.50 | + £0.12 -2% increase |
| | £1.19 | £1.19 | £0.00 -2.1% increase |
| | £1.50 | £1.50 | £0.00 -2% increase |
| | £5.64 | £5.64 | £0.00 -1% increase |
| Harpic Active Fresh 6 Rim Block Citrus Toilet Cleaner () | £2.46 | £2.66 | + £0.20 8.1% 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 |
| | £2.10 | £2.10 | £0.00 No change |
| | £4.49 | £4.47 | - £0.02 0% decrease |
| | £3.45 | £5.11 | + £1.66 8.1% increase |
| Harpic White & Shine Bleach Citrus Toilet Cleaner Gel (750ml) | £1.90 | £2.33 | + £0.43 22.6% increase |
| | £0.99 | £0.99 | £0.00 No change |
| | £1.05 | £1.05 | £0.00 No change |
| | £1.40 | £1.50 | + £0.10 2.6% increase |
| | £1.60 | £1.60 | £0.00 2.4% increase |
| | £2.10 | £2.10 | £0.00 1.4% increase |
| | £1.50 | £4.36 | + £2.86 34% increase |
| | £4.69 | £4.69 | £0.00 22.6% increase |
| Harpic Power Plus Max Citrus Fresh Toilet Cleaner Gel (750ml) | £2.25 | £2.20 | - £0.05 -2.2% decrease |
| | £1.30 | £1.57 | + £0.27 20.8% increase |
| | £1.50 | £1.55 | + £0.05 11.4% increase |
| | £1.95 | £1.95 | £0.00 7% increase |
| | £2.00 | £1.50 | - £0.50 -3% decrease |
| | £1.88 | £2.10 | + £0.22 No change |
| | £2.35 | £2.00 | - £0.35 -2.7% decrease |
| | £4.75 | £4.75 | £0.00 -2.2% increase |
| Harpic Power Plus Toilet Cleaner Gel Original Scent (750ml) | £2.19 | £2.07 | - £0.12 -5.5% decrease |
| | £1.78 | £1.57 | - £0.21 -11.8% decrease |
| | £1.30 | £1.30 | £0.00 -6.5% increase |
| | £1.68 | £1.65 | - £0.03 -5% decrease |
| | £2.00 | £1.50 | - £0.50 -10.7% decrease |
| | £1.95 | £1.95 | £0.00 -8.6% increase |
| | £4.43 | £4.43 | £0.00 -5.5% increase |
| Harpic Active Fresh 6 Rim Block Lavender Toilet Cleaner (40g) | £2.92 | £2.34 | - £0.58 -19.9% 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 |
| | £2.10 | £1.50 | - £0.60 -7.7% decrease |
| | £4.65 | £1.50 | - £3.15 -30.1% decrease |
| | £5.04 | £5.34 | + £0.30 -19.9% increase |
| 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) | £5.05 | £5.88 | + £0.83 16.4% increase |
| | £2.60 | £2.60 | £0.00 No change |
| | £2.50 | £2.50 | £0.00 No change |
| | £6.97 | £11.84 | + £4.87 40.5% increase |
| | £8.13 | £6.56 | - £1.57 16.4% decrease |
