| 16 Products | May 2024 | May 2025 | Change |
| Harpic Limescale Remover Toilet Cleaner (750ml) | £3.86 | £3.94 | + £0.08 2.1% increase |
| | £1.00 | £1.00 | £0.00 No change |
| | £1.50 | £1.65 | + £0.15 6.4% increase |
| | £1.05 | £1.05 | £0.00 4.2% increase |
| | £1.95 | £1.50 | - £0.45 -5.8% decrease |
| | £1.30 | £1.30 | £0.00 -4.4% increase |
| | £1.30 | £2.65 | + £1.35 13.3% increase |
| | £2.35 | £2.00 | - £0.35 6.7% decrease |
| | £18.99 | £18.99 | £0.00 2.4% increase |
| | £5.29 | £5.29 | £0.00 2.1% increase |
| Harpic Power Plus Regular Toilet Cleaner 8 Tablets () | £3.30 | £3.30 | £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 |
| | £6.74 | £6.67 | - £0.07 0% decrease |
| Harpic Active Fresh Toilet Cleaner Gel Pine Scent (750ml) | £1.93 | £1.92 | - £0.01 -0.5% 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 |
| | £1.50 | £1.30 | - £0.20 -6.7% decrease |
| | £2.35 | £2.35 | £0.00 -4.5% increase |
| | £1.25 | £1.55 | + £0.30 -0.7% increase |
| | £1.19 | £1.19 | £0.00 -0.7% increase |
| | £1.50 | £1.50 | £0.00 No change |
| | £5.64 | £5.64 | £0.00 -0.5% increase |
| Harpic Active Fresh 6 Rim Block Citrus Toilet Cleaner () | £2.21 | £2.66 | + £0.45 20.4% 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 |
| | £1.79 | £5.11 | + £3.32 20.4% increase |
| 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) | £2.35 | £2.32 | - £0.03 -1.3% decrease |
| | £1.78 | £1.57 | - £0.21 -11.8% decrease |
| | £1.50 | £1.65 | + £0.15 -1.8% increase |
| | £1.95 | £1.95 | £0.00 -1.1% increase |
| | £2.00 | £1.65 | - £0.35 -5.5% decrease |
| | £2.10 | £2.65 | + £0.55 1.1% increase |
| | £2.35 | £2.00 | - £0.35 -2.1% decrease |
| | £4.75 | £4.75 | £0.00 -1.3% increase |
| Harpic Power Plus Toilet Cleaner Gel Original Scent (750ml) | £2.14 | £2.15 | + £0.01 0.5% increase |
| | £1.65 | £1.57 | - £0.08 -4.8% decrease |
| | £1.30 | £1.65 | + £0.35 8.8% increase |
| | £1.50 | £1.65 | + £0.15 9.5% increase |
| | £2.00 | £1.65 | - £0.35 1.2% decrease |
| | £1.95 | £1.95 | £0.00 0.6% increase |
| | £4.43 | £4.43 | £0.00 0.5% increase |
| Harpic Active Fresh 6 Rim Block Lavender Toilet Cleaner (40g) | £2.84 | £2.34 | - £0.50 -17.6% 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 |
| | £4.57 | £1.50 | - £3.07 -27.8% decrease |
| | £4.98 | £5.34 | + £0.36 -17.6% 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) | £5.02 | £5.88 | + £0.86 17.1% increase |
| | £2.60 | £2.60 | £0.00 No change |
| | £2.50 | £2.50 | £0.00 No change |
| | £7.01 | £11.84 | + £4.83 39.9% increase |
| | £7.98 | £6.56 | - £1.42 17.1% decrease |
