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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White Book™ - Nonfood Compounds Listing Directory
NSF-Registered
Proprietary Substances and Nonfood Compounds
Water Engineering Inc. Visit this company's website
  Formula 10 159036 G5  
  Formula 1113 142035 G2  
  Formula 1114 122096 G2  
  Formula 1116 122066 G2  
  Formula 1122DC 159035 G6  
  Formula 1242 163268 G6, G7  
  Formula 1310 163269 G6, G7  
  Formula 1331 134339 G6  
  Formula 1400 134351 G6  
  Formula 1401 134342 G6  
  Formula 1410 134341 G6  
  Formula 1411 134340 G6  
  Formula 1440 134343 G6  
  Formula 1520 134346 G7  
  Formula 1530 134347 G7  
  Formula 1535 163270 G7  
  Formula 1540 134345 G7  
  Formula 1570Plus 172808 G5  
  Formula 1585 163271 G5, G7  
  Formula 1601 134348 G7  
  Formula 1602 134350 G7, G5, G6  
  Formula 1605 172803 G6  
  Formula 1607 163272 G5, G6  
  Formula 1615 134349 G6  
  Formula 1730 124329 W1  
  Formula 1731 124326 W1  
  Formula 1732 124327 W1  
  Formula 1733 124328 W1  
  Formula 1734 124325 W1  
  Formula 1736 163276 G5  
  Formula 1750 134280 P1  
  Formula 1760 134282 A1  
  Formula 1810 163277 G5  
  Formula 1810 PLUS 172805 G5  
  Formula 1810Z 159037 G5  
  Formula 1823 172807 G5  
  Formula 1830 134281 G7  
  Formula 1831 172804 G5  
  Formula 1850 134344 G7  
  Formula 1855 134283 G7  
  Formula 2175 159039 G6  
  Formula 2175 172806 G5  
  WEIGuard C-168 166785 G5  
Number of matching Manufacturers is 1
Number of matching Products is 43
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