AutoPot™ Top Hat Grommets is to fix and seal the tap to the AutoPot Solid Tanks or some other custom water reservoirs.
The hole is drilled in the bottom area of the tank, the suitable grommet will be inserted in the hole, then the hosepipe or water barrel tap will be pushed and sealed into to the hole.
6mm Top Hat Grommet
16mm Top Hat Grommet (19mm Hole Required)
19mm Top Hat Grommet (23mm Hole Required)