AmeriVent 4ECW Double Wall Universal Gas Vent Cap,, 4" Welding Kits Single test/silence button to check

Single test/silence button to check all alarm functions

Clear coat blade protection for more durable markings

Variable-speed reversing trigger — for accurate bit starting

Clamping Strength: 1000 lb

natural and LP gas (vapor state)

AmeriVent 4ECW Double Wall Universal Gas Vent Cap,, 4" Welding Kits Single test/silence button to checkHighlights: 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