Hayward W3SP15932S 1.5 HP 115V PowerFlo Dual Speed Matrix Pump. The PowerFlo Matrix has been engineered as a uniquely superior above ground pool pump. With a single push of a button, this truly versatile pump changes from a vertical to a horizontal discharge and back again. Its large profile and integrated styling makes the PowerFlo Matrix a swimming pool pump like no other. Features: Above ground pools Single speed motor On/Off Switch The above ground industry's largest strainer basket for large debris collection with minimal maintenance Horizontal/vertical discharge feature; simply converts from vertical to horizontal discharge orientation with the press of a button Quick disconnect intake and discharge pipe connection Heavy-duty, high performance motor with integrated automatic thermal overload protector for years of operation Durable, corrosion-proof housing