Embassy upper "U" butterfly gasket for Embassy&Doughboy& Lomart  2019 skimmers. 

It measures 9 13/16" wide. 7 4/16" from top to lower indentation. 

7 5/8" from top to bottom with no indentation. 

Part #307-1029

You may also need the Embassy lower "U" butterfly gasket. Item 307-1030