Pro Products RO-SANI-SYSTEM-1PK Sani-System SS96RO Liquid Reverse Osmosis Sanitizer, 1-Pack Pro Products SS96RO is the industry's only EPA and NSF approved sanitizer. SS96RO delivers reliable, effective results every time Pro Products SS96RO is proven to kill 99.9% of harmful bacteria without using chlorine oxidizers or acids that can harm system equipment and parts Pro Products SS96RO Sani-System Reverse Osmosis Sanitizer is NSF Certified to meet NSF/ANSI Standard 60 Made in the U.S.A Genuine OEM Product