1/2" Grommet
1/2" Grommet at HorticultureSource.com -
General Hydroponics 1/2" Grommet (GH4165) Grommet 1/2" for barbed fittings (Waterfarm). Manufacturer's Product Information MSRP each $ 0.68 Dimensions 1.75 x 0.63 x 1.75 Case Quantity 25