| 16 Products | Aug 2024 | Aug 2025 | Change |
| Harpic Limescale Remover Toilet Cleaner (750ml) | £3.90 | £3.98 | + £0.08 2.1% increase |
| | £1.00 | £1.00 | £0.00 No change |
| | £1.50 | £1.65 | + £0.15 6.4% increase |
| | £1.05 | £1.65 | + £0.60 21.2% increase |
| | £1.95 | £1.65 | - £0.30 8% decrease |
| | £1.30 | £1.30 | £0.00 6.6% increase |
| | £2.00 | £2.30 | + £0.30 8.2% increase |
| | £2.00 | £2.00 | £0.00 7.1% increase |
| | £18.99 | £18.99 | £0.00 2.7% increase |
| | £5.29 | £5.29 | £0.00 2.1% increase |
| Harpic Power Plus Regular Toilet Cleaner 8 Tablets () | £3.40 | £3.30 | - £0.10 -2.9% decrease |
| | £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 |
| | £7.57 | £6.67 | - £0.90 -2.9% decrease |
| Harpic Active Fresh Toilet Cleaner Gel Pine Scent (750ml) | £1.94 | £1.90 | - £0.04 -2.1% decrease |
| | £1.30 | £1.30 | £0.00 No change |
| | £1.20 | £1.20 | £0.00 No change |
| | £1.30 | £1.25 | - £0.05 -1.6% decrease |
| | £1.50 | £1.30 | - £0.20 -5.3% decrease |
| | £2.35 | £2.35 | £0.00 -3.3% increase |
| | £1.50 | £1.55 | + £0.05 -2.6% increase |
| | £1.19 | £1.19 | £0.00 -2% increase |
| | £1.50 | £1.30 | - £0.20 -3.4% decrease |
| | £5.64 | £5.64 | £0.00 -2.1% increase |
| Harpic Active Fresh 6 Rim Block Citrus Toilet Cleaner () | £2.73 | £2.66 | - £0.07 -2.6% decrease |
| | £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 |
| | £5.97 | £5.11 | - £0.86 -2.6% decrease |
| Harpic White & Shine Bleach Citrus Toilet Cleaner Gel (750ml) | £2.33 | £2.33 | £0.00 No change |
| | £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 | £4.69 | £0.00 No change |
| Harpic Power Plus Max Citrus Fresh Toilet Cleaner Gel (750ml) | £2.21 | £2.27 | + £0.06 2.7% increase |
| | £1.65 | £1.62 | - £0.03 -1.8% decrease |
| | £1.50 | £1.65 | + £0.15 3.8% increase |
| | £1.95 | £1.95 | £0.00 2.4% increase |
| | £1.50 | £1.65 | + £0.15 4.2% increase |
| | £2.10 | £2.30 | + £0.20 5.2% increase |
| | £2.00 | £2.00 | £0.00 4.5% increase |
| | £4.75 | £4.75 | £0.00 2.7% increase |
| Harpic Power Plus Toilet Cleaner Gel Original Scent (750ml) | £2.06 | £2.16 | + £0.10 4.9% increase |
| | £1.65 | £1.62 | - £0.03 -1.8% decrease |
| | £1.30 | £1.65 | + £0.35 10.8% increase |
| | £1.50 | £1.65 | + £0.15 10.8% increase |
| | £1.50 | £1.65 | + £0.15 10.1% increase |
| | £1.95 | £1.95 | £0.00 7.6% increase |
| | £4.43 | £4.43 | £0.00 4.9% increase |
| Harpic Active Fresh 6 Rim Block Lavender Toilet Cleaner (40g) | £2.95 | £2.34 | - £0.61 -20.7% 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 |
| | £5.71 | £5.34 | - £0.37 -20.7% 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) | £5.03 | £5.88 | + £0.85 16.9% increase |
| | £2.60 | £2.60 | £0.00 No change |
| | £2.50 | £2.50 | £0.00 No change |
| | £7.02 | £11.84 | + £4.82 39.9% increase |
| | £7.98 | £6.56 | - £1.42 16.9% decrease |
