These grommets can be used to replace old, worn top hat grommets in your hydroponic system and can be a valuable solution when building your own garden system. Top Hat grommets have a straight side wall for easy installation. When the fitting is inserted into the grommet, the wall is pushed against the whole surface to create the seal.
Sold in bags of 10 only.
Top Hat Grommet 1/4”- Recommend hole size 7/16” ( 11mm)
Top Hat Grommet 1/2”- Recommend hole size 9/16” (14mm)
Top Hat Grommet 5/8”- Recommend hole size 11/16” ( 17mm)
Top Hat Grommet 3/4”- Recommend hole size 13/16” ( 19mm)