NSF Product and Service Listings

These NSF Official Listings are current as of Thursday, January 15, 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/CAN 60
Drinking Water Treatment Chemicals - Health Effects


 
RectorSeal LLC 
2601 Spenwick Drive
Houston, TX 77055 
United States 
713-263-8001
Visit this company's website

Facility : # 1 USA


Miscellaneous Water Supply Products
Trade Designation Product Function Max Use
Calci-Flush™[1] [2] Other NA
Calci-Free™ [2] Descaler NA 

[1] This product functions as an offline scale remover for water heater tanks.
[2] This product is designed to be used off-line and flushed out prior to using the system
    for drinking water, following manufacturer's use instructions.

Number of matching Manufacturers is 1
Number of matching Products is 2
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