

Yellow cap is coarse thread and typically fits midwest, scepter and our chilton adapter, jerry can adapter, no spill adapter, and racing jug adapter.
Black cap is fine thread and typically fits older Briggs and Stratton, Rubbermaid, Essence, Blitz and Gott Cans.
Solid base cap gray fits older Wedco and later model Briggs and Stratton cans.
Yellow cap is coarse thread and typically fits midwest, scepter and our chilton adapter, jerry can adapter, no spill adapter, and racing jug adapter.
Black cap is fine thread and typically fits older Briggs and Stratton, Rubbermaid, Essence, Blitz and Gott Cans.
Solid base cap gray fits older Wedco and later model Briggs and Stratton cans.