Hayward Power-Flo® Matrix SP1591 Aboveground Pump with Strainer and 6' Cord 1 HP 115V. Hayward PowerFlo® Matrix high efficiency pumps are engineered to dependably adapt to the unique needs of a wide variety of above-ground pool setups. Built with convenience in mind, PowerFlo Matrix offers features like an extra-large basket and discharge orientation that can change with the push of a button—all to deliver the hassle-free usage and long-term performance that pool owners expect.