AmeriVent 4ECW Double Wall Universal Gas Vent Cap,, 4" Welding Kits Convex end: 2-1/2" x 1/16"

Convex end: 2-1/2" x 1/16"

Four divided compartments

Hitch ball hole size : 1"

Single test/silence button to check all alarm functions

Clear coat blade protection for more durable markings

AmeriVent 4ECW Double Wall Universal Gas Vent Cap,, 4" Welding Kits Convex end: 2-1/2" x 1/16"Highlights: 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