2PC Selkirk Selkirk 186060 Round Gas Vent Pipe 6 x 5

Size: 6 x 5 ; Type B gas vent; OD = ID + 1/2 ; Installed length 1-1/2 less than listed length; Aluminum inner wall galvanized outer wall; For gravity draft venting of LP or natural gas appliances; 100 million BTU/hr. max 500 degree max.; Not for wall furnaces; Boxed;