3MFT - Type B Gas Vent Flat Roof Flashing - 3"Metal Fab 3MF Type B Gas Vent Flat Roof Flashing 3" Metal Fab is the only B Vent manufacturer with UL approval to connect the male end into the female end of all competitive UL listed B Vent brands, increasing product versatility. Did you know that by simply connecting using three (3) quarter inch sheet metal screws to secure creates a UL listed connection? Material Specifications The outer wall is constructed of galvanized steel, . 018" thick G 90
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols