Small black rubber U-Cup located at the base of the Pump Stem Assembly. The U-Cup needs to be replaced when no air pressure is being created. For Pressurized Alcohol Stoves. Ref. #H-1233
Part #: B93012
Overview
2 U-Cups.
Compatible only with Kenyon alcohol stoves.
Apply a small amount of 3 in 1 oil to prevent dry plunging in the beginning of each season.