Designed Specifically For Use With The Sub-Zero Uc-15I Ice Maker; Do Not Use On 315I Ice Makers (Contact Your Parts Distributor To Purchase Cleaners For 315I Ice Makers). This Cleaner Is Recommended For Cleaning And Maintenance Of Your Ice Maker. It Will Increase Its Reliability. Performance And Help Save On Water And Power Consumption. Clean And Sanitize The Ice Maker Every Six Months For Efficient Operation.