Grommet - Bowl/Hose and/or Base This item contains one hose grommets/seals and one bowl grommet/seal and or one base Grommet. These items can be used to seal the hose and bowl of your hookah to ensure they remain air tight. The hose and bowl grommets are colorless and will fit most hookahs. The base grommet comes in two sizes that will also fit most hookahs. Check our Replacement Glass Bases for Dimensions if you are unsure whether or not the base grommet will fit. ?