This is a black rubber base grommet used on our small and large Mod Hookahs. They are more uniform in shape then the Egyptian base grommets and have 3 "ribs" on the outside for added secureness.
The Large Mod Base Grommet measures 1.65 inches (outside diameter) and 1.5 inches (inside diameter). They are used on the glass bases for our Large Mod Hookahs and are also compatible with the following replacement bases:
The Small Mod Base Grommet measures 1.4 inches (outside diameter) and 1.2 inches (inside diameter). They are used on the glass bases on our Small Mod Hookahs (Ivory Hookah, Ebony Hookah, Mini Tower Hookah, and Junior Hookah). It is also compatible with the glass Mini Mod Hookah Base.