O-Ring for PWS Lid Knob, Buna 112 (#080064)

Buna 112 O-ring (#080064) for the lid knob on PWS distiller boiling tanks. The ring seats in the groove of the knob and keeps steam and hot water from escaping past the lid during distillation, which preserves the internal conditions the distiller depends on.

• Buna elastomer, size 112
• Handles distillation temperatures and chemical exposure
• Applies to boiling tank lids only — holding tank lids do not use this seal

Steam wisping from around the lid knob is the tell-tale sign this small ring has flattened and is due for replacement.