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



  • 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.