The product is an OEM Subaru emission fuel vapor canister for the 1998-2005 Impreza WRX. Made of plastic and manufactured in Japan, this canister is designed to be placed on the rear of the vehicle. With the OE/OEM part number and manufacturer part number both being 42036AC020, this part is a genuine Subaru product, ensuring a perfect fit and quality construction for your vehicle's emission system.