19 MM Grommet

Top Hat Rubber Grommet [19mm]

Top hat grommets are used in conjunction with take-off fittings, tubing and barbed irrigation fittings. They provide a seal around the fitting through a wall in a plastic containter, usually to provide a small diameter poly pipe branch from a large supply pipe.

The grommets fit inside a hole drilled in the supply pipe, or a reservoir container of water or nutrient for a garden or series of pots. 

How to Use a Top Hat Grommet

Drill a 19mm hole, clean any burrs, insert the top hat grommet, and then push the tube or barbed fitting through the grommet.