DETAILS
DESCRIPTION
Highlights:
- Size: 4"
- Type B gas vent
- OD = ID + 1/2"
- Adjustable
- Inner wall aluminum, outer wall galvanized
- For gravity draft venting of "listed" LP or natural gas burning appliances
- 100 million BTU per hr., 500 deg. F max
- Appropriate for thru wall where applicable
- Not for wall furnaces
- Boxed