Replacement aluminum range filter made by Filter Everything and compatible with Broan G-8678. Dimensions measure 18-1/8 x 18-1/8 x 5/16 inches. Sold as a pack. Our filters are manuctured to meet or exceed OEM quality and are fully compatible with the name brand (OEM) model. Aluminum filters should be cleaned every 60-90 days; carbon filters should be replaced every 6-9 months. Proudly packed and shipped from our facility near Cleveland, OH.