ANSI SPRI GT-1 R2022 Test Standard For External Gutter Systems, Version GT-1 R2022, ANSI-SPRI-GT-1_R2022-Test-Standard-for-External-Gutter-Systems.pdf (0.3 MiB) - ANSI/SPRI GT-1 Test Standard for External Gutter Systems Approved 05/26/16 and reaffirmed 07/08/22 This...