NSF/ANSI 42 Manufacturer Certificate
An NSF certificate recognizing Zhejiang Bossking Technology Co., Ltd. for products that comply with NSF/ANSI 42 and appear in the applicable NSF Official Listing. Products included in the official listing are authorized to bear the NSF Mark.
NSF-Tested Filtration Components
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NSF/ANSI 42 Material Safety Evaluation
An NSF evaluation report covering material leaching testing for filtration components used in applicable Purewell water filtration systems. The evaluation was conducted in accordance with the relevant NSF/ANSI 42 requirements for drinking water treatment units.
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NSF/ANSI 42 - Water Filter
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NSF/ANSI/CAN 372 Lead Content Evaluation
An NSF evaluation report covering lead-content verification for drinking-water system components used in applicable Purewell filtration systems. The tested component passed the relevant NSF/ANSI/CAN 372 lead-content requirements.
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NSF/ANSI 372 - Water Filter
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NSF/ANSI 42
Focuses on drinking water treatment performance related to aesthetic effects, such as taste, odor, and overall drinking experience.
NSF/ANSI/CAN 372
Verifies lead-content requirements for components that come into contact with drinking water.
Filtration Performance Test Reports
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Bacteria Removal Efficacy
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Fluoride Removal Efficacy
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Heavy Metal Removal Efficacy
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Turbidity & Others Removal Efficacy
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K8680 Water Quality & Filtration Performance Documents
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SGS Filtration Performance Test Report
Third-party challenge testing conducted by SGS on a Portable RO Purifier sample. The report evaluates the reduction of selected contaminants and water-quality parameters using methods referring to NSF/ANSI 42, NSF/ANSI 58, and applicable EPA testing procedures.
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NSF/ANSI 42 Official Listing
An official NSF listing covering selected water filter products, carbon blocks, filter cartridges, and GAC filtration components manufactured by Zhejiang Bossking Technology Co., Ltd.
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NSF/ANSI 42 Manufacturer Certificate
An NSF certificate recognizing Zhejiang Bossking Technology Co., Ltd. for products that comply with NSF/ANSI 42 and appear in the applicable NSF Official Listing.
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NSF/ANSI/CAN 372 Lead Content Evaluation Report
An NSF evaluation report showing that component model K8775A passed lead-content verification testing under NSF/ANSI/CAN 372 requirements for drinking-water system components.
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Document Notice
Document coverage varies by file. The SGS report applies only to the tested Portable RO Purifier sample and specified test conditions. NSF certification applies only to products appearing in the applicable Official Listing. The NSF/ANSI/CAN 372 evaluation applies only to component model K8775A and does not by itself certify the complete Portable RO Water Filter System.