The MLBSML Goof Plug will fit and plug all standard holes punched with a standard large size .195 hole punch for common barb and other emission devices.
Note - for smaller holes punched with .160, .170 or .180 (small) hole punch into half-inch tubing, you will need the smallerer MLBSML Small Good Plug. Three-Quarter inch tubing requiring this large MLBLRG goof plug is usually only found in commercial applications.
Almost all residential drip mist systems require the smaller MLBSML Hole Plug.