Fits models: Used on L&L kilns manufactured after May 2025. Used on DaVinci and JD2900 Jupiter kilns that have three grooves. Also used on some Quad kilns.
Size: 7/8" diameter x 3.75" long top hat style plug. (Stepped head has a 1.5" diameter)
Using it: Used to cover the spy holes that are predrilled in most kiln rings.