Extends crown of roof jack up an extra 16 inches to clear drifting snow or down drafts which may cause pilot outages. Extension consists of 2 pipes. Inside pipe has a diameter of 5-1/2" on one end and 5-3/8" on the other end. Outside pipe has a diameter of 8-1/2" on one end and 8-3/8" on the other. Screws included.
Extension must be installed above roofline. Connections cannot be inside an attic. Quick Tech Tip. Instruction Sheet.