I try to avoid parts that are the cheapest by far, which is usually an indicator of quality, and go w/ slightly cheaper, which is an indicator of markup differences - consider shipping too on something like that
"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
