| Reference no. | Diameter (outer) | Bore (I.D.) | Unit cost (length) | Pack cost | Pack quantity |
| C5/0.5 | 5 | 0.5 | £0.97 | £200.20 | 256 |
| C5/1.0 | 5 | 1.0 | £0.95 | £194.16 | 256 |
| C5/1.5 | 5 | 1.5 | £0.90 | £185.72 | 256 |
| C6/1.0 | 6 | 1.0 | £1.38 | £188.14 | 170 |
| C6/1.5 | 6 | 1.5 | £1.34 | £182.10 | 170 |
| C6/2.0 | 6 | 2.0 | £1.27 | £172.46 | 170 |
| C6/2.5 | 6 | 2.5 | £1.18 | £160.40 | 170 |
| C7/1.5 | 7 | 1.5 | £1.85 | £180.90 | 122 |
| C7/2.0 | 7 | 2.0 | £1.78 | £173.66 | 122 |
| C7/2.5 | 7 | 2.5 | £1.70 | £165.22 | 122 |
| C8/1.0 | 8 | 1.0 | £2.50 | £200.20 | 100 |
| C8/1.5 | 8 | 1.5 | £2.44 | £195.80 | 100 |
| C8/2.0 | 8 | 2.0 | £2.38 | £190.54 | 100 |
| C8/2.5 | 8 | 2.5 | £2.30 | £183.32 | 100 |
| C8/3.0 | 8 | 3.0 | £2.17 | £173.66 | 100 |
| C8/3.5 | 8 | 3.5 | £2.05 | £164.02 | 100 |
| C9/1.5 | 9 | 1.5 | £3.12 | £202.60 | 81 |
| C9/2.0 | 9 | 2.0 | £3.05 | £197.78 | 81 |
| C9/2.5 | 9 | 2.5 | £2.95 | £191.76 | 81 |
| C9/3.0 | 9 | 3.0 | £2.85 | £184.52 | 81 |
| C9/3.5 | 9 | 3.5 | £2.73 | £177.28 | 81 |
| C10/1.5 | 10 | 1.5 | £3.86 | £197.78 | 64 |
| C10/2.0 | 10 | 2.0 | £3.80 | £194.16 | 64 |
| C10/2.5 | 10 | 2.5 | £3.70 | £189.34 | 64 |
| C10/3.0 | 10 | 3.0 | £3.60 | £184.52 | 64 |
| C10/3.5 | 10 | 3.5 | £3.48 | £178.48 | 64 |