NAPA will usually have a variety box of rubber grommets that includes some without holes [plugs], might check that - also, electrical parts suppliers have various size metal plugs for junction boxes that might work .... be creative

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics