NSF Product and Service Listings

These NSF Official Listings are current as of Friday, January 30, 2026 at 12:15 a.m. Eastern Time. Please contact NSF to confirm the status of any Listing, report errors, or make suggestions.

Alert: NSF is concerned about fraudulent downloading and manipulation of website text. Always confirm this information by clicking on the below link for the most accurate information: http://info.nsf.org/Certified/PwsComponents/Listings.asp?Company=C0788900&Standard=533&


NSF Certification Guideline 533
Ingredients Used in Drinking Water Products



 
Nitto Kasei Co., Ltd. 
3-17-14 Nishi Awaji, Higashi Yodogawa-ku
Ôsaka [Osaka] 533-0031 
Japan 
81 6 6322 4351
Visit this company's website


Facility : Hyôgo, Japan
     
Trade Designation Max Use Level Water Contact Temp Water Contact Material

Heat Stabilizer
TVS GR-300SA[1] [2] 4 phr C. HOT CPVC 

[1] Use of this ingredient in NSF Certified products requires prior authorization from NSF.
[2] Ingredient complies with NSF/ANSI/CAN 61 Health Effects requirements when tested at 180°
    F in CPVC Material.

Number of matching Manufacturers is 1
Number of matching Products is 1
Processing time was 0 seconds