The DuraVent DuraPlus 6DP-SC Storm Collar is a 6" galvanized steel chimney accessory designed for outdoor use. Made in the United States, this silver-colored unit is specifically designed for chimney applications, providing a durable and reliable solution for your fireplace or stove needs. With a focus on quality and performance, the DuraVent DuraPlus Storm Collar is a top choice for those looking to enhance their home's heating and cooling efficiency.