Hayward 925F Navigator Pro Automatic In-Ground Fiberglass Pool Cleaner Navigator Pro automatic pool cleaner is designed to clean in-ground pools made of fiberglass Exclusive Smart Drive programmed steering moves the cleaner silently in a predetermined series of turns for more thorough cleaning No pulsating hoses or noisy parts, for a peaceful pool environment No additional up-front or increased monthly energy costs Connects in less than 10 minutes to skimmer or suction port