Replacement aluminum filter made by Filter Everything and compatible with Miami-Carey RHF1401. Dimensions measure 14-3/4 x 17 x 3/32. Sold as a 1-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.