4" Site Plug, pack of 10
4" Site Plug, pack of 10 at HorticultureSource.com -
General Hydroponics 4" Site Plug (GH6622) Site plug for AeroFlo2 Square Chamber. Manufacturer's Product Information MSRP each $ 2.13 Dimensions 6.75 x 1 x 6.75 Case Quantity 10