Aquascape®️ 91006 Ultra 550 Water Pump. The Aquascape Ultra 550 Water Pump is ideal for use with decorative fountains, external filters, small ponds, and other various water feature applications. The fish-safe, oil-free design uses mag-drive technology making this pump extremely energy efficient, saving hundreds of dollars over traditional pumps. The included half-inch valve, threaded elbow, and multi-hose fitting make this pump easy to install in a wide variety of applications. The durable pre-filter cage protects the pump, and the locking cage design makes it easy to remove the pre-filter for cleaning and maintenance, providing years of trouble-free operation. A wide, flat base and rubber feet make the Ultra 550 Water Pump stable and decrease the amount of vibration during use. The included fittings are compatible with most ½””, ¾””, 1″”, and 1.25″” pipe.