Hayward's Power-Flo II™ Self-Priming Pump is a high performance, low maintenance pump series for above-ground and small inground pools requiring self-priming action. The Power-Flo II is the pool professional's choice for superior performance and unparalleled quality. Also ideal for water fountains, small marine aquariums and pond circulation. Pumps measure 7¼-inches wide, 11¼-inches tall and 20¼-inches long with a pipe size of 1½-inches. The Hayward Power Flo II Self Priming Pump has been in use for decades. Power Flo II pumps have given excellent service for use in small bodies of water, especially in above ground pools, onground pools and small inground pools.