American Metal Gas Vent Storm Collar Size:6" simply attach chain links to

simply attach chain links to either hook and pull the lever to tighten

Woodpeckers and others

Deadbolt Latch has round corner faceplate - round corner and square corner

and grate to help break up clumps in spreading materials

Including Multiple Massage Sprays & Trickle Setting

American Metal Gas Vent Storm Collar Size:6" simply attach chain links toDouble Wall Construction Double wall metal construction provides protection for health and safety, as well as benefits of economy, ease of installation, efficiency, and protection from property damage. Designers of vent systems should take particular note of the fact that vents constructed of brick, cement, asbestos, and mass insulated metal require lengthy warm up periods, whereas double wall metal vents reach operating temperatures almost instantly