AUTOMATIC SIPHON - THE ITEM CONSISTS OF A PLASTIC SIPHON, 2 RUBBER WASHERS AND A BACK NUT. IT ALLOWS URINALS TO BE FLUSHED WITH A PRE-DETERMINED QUANTITY OF WATER AT REGULAR INTERVALS. IT CONSISTS OF A PLASTIC SIPHON, 2 RUBBER WASHERS AND A BACK NUT

GENERAL INTERPRETATIVE RULES 1 & 6 HARMONISED SYSTEM EXPLANATORY NOTES TO HEADING 3922 TEXT TO CODE 3922