NSF Product and Service Listings

These NSF Official Listings are current as of Sunday, December 7, 2025 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/DWTU/Listings.asp?Standard=058&Company=C0036360&

Note: Certain claims, such as Arsenic (Pentavalent) Reduction, appear as active links, allowing you to access additional information regarding the specific contaminants.

NSF/ANSI 58
Reverse Osmosis Drinking Water Treatment Systems


 
Swun Chyan GROUP (Swun Yuan / Swun Yuan Filmtech) Enterprises Co., Ltd. 
No. 16, Lane 73, Liougu Road
Wufong Hsiang 
Taichung 41359 
Taiwan 
886 4 2333 7226
Visit this company's website

Facility : 1A - Taiwan

             

COMPONENTS: RO Membrane[1] [2]
TW-WWLL-ZZZVVV    

   
[1] Certified for material requirements only.
[2] TW  - Fixed code
    WW  - 1.8 - 3.5 Membrane element diameter in inches
    LL  - 7-13 Membrane element length in inches
    ZZZ - 020-1000 GPD
    VVV - Vendor Code

COMPONENTS: RO Tank, Low Pressure[3]
Z-TK022    
Z-TK032    

   
[3] Certified for material and structural integrity requirements only.


Facility : Taichung, Taiwan

             

COMPONENTS: Fittings
0HLDQ04WH04    
0HLDQ06WH04    

COMPONENTS: Membrane Pressure Vessels[1]
RO1-0001W    

   
[1] Conforms to material and structural integrity requirements only.


NOTE: These components do not bear the NSF Mark.  Evidence of Certification will appear on the
      manufacturer's literature and packaging.

Facility : Samut Prakan, Thailand

             

COMPONENTS: Membrane Pressure Vessels[1]
RO1-0001W    

   
[1] Conforms to material and structural integrity requirements only.

Number of matching Manufacturers is 1
Number of matching Products is 7
Processing time was 0 seconds