Profile: Pool Cover Specialists National, Inc. manufactures and supplies swimming pool covers. We offer Infinity4000™ recessed toptrack model, Mini-Infinity™ automatic cover system designed for swim spas, PowerTrak™ automatic safety cover and ManualTrak™ system for small to mid-sized pools. Our Infinity 4000™ recessed toptrack model fits both free-form and rectangular pools which can accommodate both new & existing pools. Our PowerTrak™ is suitable for existing pools; it is designed to be mounted to the surface of an existing pool deck and does not require any electrical preparation.