Lightweight air-insulated, double-wall metal construction with an inner pipe of reflecting aluminum and an outer pipe of corrosion-resistant galvanized steel for strength, safety, and durability. Constructed from four sections for smoother bends and less resistance. It adjusts easily from 0 degrees to 90 degrees to clear rafters or ceiling joists.
Highlights:
- Size – 5″
- 90 degree -?adjustable
- For approved gas appliance
- Aluminum inner wall
- Galvanized outer wall
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