ISR Certificate of Registration This certifies that the Quality Management System of The Tapco Group - Metamora Facility 4057 S. Oak Street Metamora, Michigan, 48455, United States has been assessed by NSF-ISR and found to be in conformance to the following standard(s): Scope of Registration: The manufacture, including injection molding and assembly of construction products and tooling. Certificate Number: Certificate Issue Date: Registration Date: Expiration Date *: Carl Blazik, Director, Technical Operations & Business Units, NSF-ISR, Ltd. NSF International Strategic Registrations 789 North Dixboro Road, Ann Arbor, Michigan 48105 | (888) NSF-9000 | www.nsf-isr.org Authorized Registration and /or Accreditation Marks. This certificate is property of NSF-ISR and must be returned upon request. ■"Company is audited for conformance at regular intervals. To verify registrations call (888) NSF-9000 or visit our web site at www.nsf-isr.org

ISR ANNEX PAGE FOR CERTIFICATE REGISTRATION NUMBER C0178773-IS3 CERTIFICATE ISSUE DATE: 30-MAR-2017 CERTIFICATE EXPIRATION DATE: 09-MAR-2020 The Tapco Group - Metamora Facility 4057 S. Oak Street Metamora, Michigan, 48455, United States Scope: The manufacture, including injection molding and assembly of construction products and tooling. Remote Location: The Tapco Group - Metamora Facility 3939 Timbro Drive Metamora, Michigan, 48455, United States Authorized Registr ation and /or Accreditation Marks. This certificate is property of NSF-ISR and must be returned upon request. ‘Company is audited...