NSF Product and Service Listings
These NSF Official Listings are current as of Thursday, January 15, 2026 at 12:15 a.m. Eastern Time. Please contact NSF to confirm the status of any Listing, report errors, or make suggestions.
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NSF-Registered Proprietary Substances and Nonfood Compounds |
| Fernox Limited | 
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| Antifreeze Protector Alphi-11 | 156337 | HT1 | ||
| Antifreeze Protector Alphi-11 25% | 164068 | HT1 | ||
| Antifreeze Protector Alphi-11 30% | 164069 | HT1 | ||
| Antifreeze Protector Alphi-11 35% | 164070 | HT1 | ||
| Antifreeze Protector Alphi-11 40% | 164071 | HT1 | ||
| Antifreeze Protector Alphi-11 50% | 164072 | HT1 | ||
| Protector F1 500 mL | 156524 | HT1 | ||
| Protector F1 Express 400 mL | 163779 | HT1 | ||
| Number of matching Manufacturers is 1 |
| Number of matching Products is 8 |
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