Category I 4in Vertical Vent Kit Maintains proper clearances through combustible construction May require additional parts to meet local codes Includes: (1) 3" to 4" adapter, (1) 4" x 36" B-vent pipe, (2) 4" x 24" vent pipe, (1) 4" 90 degree elbow, wall thimble, Roof flashing, storm collar, vent cap
