- Double-wall, air-insulated construction.
- Has Type B male/female ends for easy connection with Hart & Cooley vent.
- Requires only 1" clearance to combustibles.
- UL-listed for use as a connection from an appliance to Type B gas vent and as a segment of Type B gas vent.
- Can be used in unconditioned spaces, such as attics and crawl spaces. Do not enclose.
- Available in 3" through 5" diameters and 2' through 5' lengths