Part#: 20-4D-PS
004-0377-15 (2-1/2" BORE)
Part#: 20-4D-PS-S2
004-0377-16 (2-1/2" BORE)
Part#: 21-4D-PS
004-0378-15 (2-11/16" BORE)
Part#: 21-4D-PS-S2
004-0378-15-S2 (2-11/16 BORE)
Part#: 21-4D-PS-S3
004-0378-15-S3 (2-11/16" BORE
Part#: 22-4D-PS
004-0379-15 (2 15/16)
Part#: 22-4D-PS-S2
004-0379-15-S2 (2 15/16)
Part#: 22-4D-PS-S3
004-0379-15-S3 (2 15/16)