This replacement Spin scrub hand tool is compatible with the following models:

CDCW-PMXP

CDCW-RPXR

CDCW-RPXRRB

CDCW-SWXS

CDCW-PMXP 

CDCW-SWXSRB

CWGRV011

CWGRV011RB

CWGRV021

CWGRV021RB

ECB1SPV1

ECB1SPV1RB

ECGLV1B1