Plain-ended pipe ; Noninsulated general-purpose venting duct for low & medium operating pressures ; Noncombustible corrugated aluminum with watertight continuous lock seams ; Class 0 metal duct ; Each ; 6 x 8ft;
Plain-ended pipe ; Noninsulated general-purpose venting duct for low & medium operating pressures ; Noncombustible corrugated aluminum with watertight continuous lock seams ; Class 0 metal duct ; Each ; 6 x 8ft;