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.

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NSF/ANSI 358
Water-Based Ground-Source “Geothermal” Heat Pump Systems



 
Dow Chemical Company (The) 
Regulatory Compliance
1803 Building 
Midland, MI 48674 
United States 
979-238-5209
Visit this company's website

Facility : Hahnville, LA

NSF/ANSI 358-1 Polyethylene Pipe and Fittings

Product Type   Material Type   Trade Name   Product Standard

Material
 
PE 4710
 
Continuum™ DGDA-2490 Black
 
ASTM D3350 445574C

Material
 
PE 4710
 
Continuum™ DGDA-2490 BL
 
ASTM D3350 445574E

Material
 
PE 4710
 
Continuum™ DGDC-2480 Black
 
ASTM D3350 445574C


Facility : North Seadrift, TX

NSF/ANSI 358-1 Polyethylene Pipe and Fittings

Product Type   Material Type   Trade Name   Product Standard

Material
 
PE 3608
 
CONTINUUM™ DGDB-2480 Black
 
ASTM D3350 345464C


Number of matching Manufacturers is 1
Number of matching Products is 4
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