AmeriVent 4ECW Double Wall Universal Gas Vent Cap,, 4"
- Size: 4"
- For use as a ventilation cap as well as type B vent termination
- AmeriVent caps permit termination of vents at the minimum height necessary above the roof surface
- Protects against waste gases spilling back into the structure through the appliances draft hood
- The AmeriVent cap is UL-listed, and its patented design of ports and baffles keep rain and debris out of the vent