To complete the process, it is necessary to wrap the fitting with aluminium foil tape & cover that with either petrolatum tape or waterproof tape. This prevents chemicals penetrating plastics and tainting the water.
Available Sizes/Colours| Size | | Colour | | Price | |
| 25 | | Black | | £3.58 | |
| 27.4 | | Black | | £4.14 | |
| 32 | | Black | | £5.42 | |
| 34.5 | | Black | | £6.06 | |
| 63 | | Black | | £17.30 | |
| 65.8 | | Black | | £17.30 | |