/ I I ' I I Y I (X) Kee CY) 0- (0mm) 4-718- (124mm) 13-7/8' (340mm) Simpson Direct Vent Pro: 6" (152tivn) V (933mm) 16-1 /2- (419twn) Selkirk Direct-Temp: 9' (229mre) 10-L8- (257mm) 18-5/8" (473mm) American Metal Predicts 12- (3116mm) 12-1/C (3l 1mm) 20-3/4- (527mm) Metal-Fab Sure Seal: 24' (6