DataGroomr’s Recycle Bin provides an ability for users to view and restore any records that have been removed from Salesforce.
Note: DataGroomr recycle bin displays records as long as they are available in Salesforce recycle bin. Records are typically stored there for 15 days, which can be extended to 30 days by Enable 'Extended Recycle Bin Retention' Feature (salesforce.com).
To view records available in the Recycle Bin, select the object.
To Restore, select the records and then press the RESTORE button.
Good to know: The related records which were moved to the master record during the merge operation will be automatically reparented back to the restored records.