Master Flow 4 in. Goose Neck Vent Roof Cap in Black

The Master Flow 4 in. Goose Neck Vent in Black can be used to cover exhaust pipes extending through your roof or for attic ventilation. This vent is designed to be used on 4 in. round ducts. It's made of zinc-coated galvanized steel for durability and reliability. This vent features a heavy-duty screen which helps protect against small animals from entering your home through the vent. The black finish helps this vent blend into your home's rooftop.|Made of zinc-coated galvanized steel|Designed for 4 in. Round ducts|Ideal for pitched roofs and being used for attic ventilation or to cover exhaust pipes extending through roofs|Seal seams with code approved mastic, sealant or duct tape|Install using appropriate roofing nails (not included)|Heavy-duty screen helps protect against small animals from entering|Ample flashing for added leak protection|Black finish helps blend into rooftops|Always seal flashing with approved roof sealant