AFT/MBS 20 WH Adaptor with female thread and male bush for the connection of rigid or pliable conduits with distribution and enclosure boxesColour WHITE, similar to RAL 9010Standard: EN 61386-21, BS 4607 Part 1Nominal diameter - 20 mmThread size - M20 x 1.5Thread length - 10 mmTotal length - 40 mm..