1-1/4" Grommet For Square AeroFlo2 Chamber Drain, pack of 10
1-1/4" Grommet For Square AeroFlo2 Chamber Drain, pack of 10 at HorticultureSource.com -
General Hydroponics 1.25" Grommet-Aeroflo (GH4167) 1-1/4" Grommet For Square AeroFlo2 Chamber Drain   Manufacturer's Product Information MSRP each $ 2.2 Dimensions 3.75 x 2 x 1.75 Case Quantity 10