NSF Product and Service Listings

These NSF Official Listings are current as of Friday, December 08, 2023 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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Drinking Water System Components - Health Effects

NOTE: Unless otherwise indicated for Materials, Certification is only for the Water Contact Material shown in the Listing. Click here for a list of Abbreviations used in these Listings. Click here for the definitions of Water Contact Temperatures denoted in these Listings. Products certified to NSF/ANSI/CAN 61 comply with the health effects criteria in NSF/ANSI/CAN 600.

Shijiazhuang Zhengzhong Technology Co., Ltd. 
No. 81 Hua An East Road
Zhengding District, Shijiazhuang 
Hebei 050800 
86 203 406 1629

Facility : Hebei, China

Protective (Barrier) Materials

    Water Water
  Water Contact Contact Contact
Trade Designation Size Restriction Temp Material

Storage Tanks/Reservoirs[1] [G]
Glass Fused to Steel Tank >= 20,000 L CLD 23 MLTPL

[1] Certification does not include gaskets or washers.
[G] Product is Certified to NSF/ANSI 372 and conforms with the lead content requirements for
    “lead free” plumbing as defined by California, Vermont, Maryland, and Louisiana state
    laws and the U.S. Safe Drinking Water Act.


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