The product is a 4"x 12” grow room Air Carbon Filter designed for smell control and ventilation. The filter features a circular vent style, air supply ventilation system, and is made of metal material. This filter is 4 inches in diameter and 12 inches in height, and comes with a 4-inch inline blower motor for efficient air circulation. Made in China, this filter weighs 6 pounds and is ideal for controlling odors and improving air quality in grow rooms or indoor gardening setups.