NSF Product and Service Listings
These NSF Official Listings are current as of Saturday, October 25, 2025 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/CAN 61
Drinking Water System Components - Health Effects
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.
| Dwyer Instruments, Inc. | |
| 102 Indiana Highway 212 | |
| Michigan City, IN 46360 | |
| United States | |
| 219-879-8868 | |
| Visit this company's website |
Facility : Kingsbury, IN
Mechanical Devices
| Water | Water | |||
| Contact | Contact | |||
| Trade Designation | Size | Temp | Material | |
|
Switches/Sensors |
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| 196570-10 | NA | CLD 23 | MLTPL | |
| 196571-10 | NA | CLD 23 | MLTPL | |
| 196578-10 | NA | CLD 23 | MLTPL | |
| 196582-10 | NA | CLD 23 | MLTPL | |
| 196684-10 | NA | CLD 23 | MLTPL | |
| 196724-10 | NA | CLD 23 | MLTPL | |
| 196725-10 | NA | CLD 23 | MLTPL | |
| 196774-00 | NA | CLD 23 | MLTPL | |
| 196774-10 | NA | CLD 23 | MLTPL | |
| 196774-20 | NA | CLD 23 | MLTPL | |
| 196774-25 | N/A | CLD 23 | MLTPL | |
| 196774-30 | NA | CLD 23 | MLTPL | |
| 196774-35 | N/A | CLD 23 | MLTPL | |
| 196774-40 | NA | CLD 23 | MLTPL | |
| 196774-45 | N/A | CLD 23 | MLTPL | |
| 196774-50 | NA | CLD 23 | MLTPL | |
| 196774-55 | N/A | CLD 23 | MLTPL | |
| 196774-70 | N/A | CLD 23 | MLTPL | |
| 196774-80 | N/A | CLD 23 | MLTPL | |
| 62x-a-b-c-d-e-NW[1] | NA | CLD 23 | MLTPL | |
[1] 62 Product Series
x - Sensor Accuracy: 6, 7, or 8
a - Sensor Range and Units: 00-99
b - Housing Type: CH, CB, or GH
c - Fitting Thread Form: P1 - P10
d - Electrical Cable and Connection: E1 - E9
e - Electrical Output: S1 - S9
NW - indicates NSF Certification
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