High efficiency, low maintenance and maximum performance. All the features demanded by today's pool professionals. The Max-E-Pro has our new Quick-Lock™ trap cover ring and the 2" (50mm) ports incorporate internal and external threads. Available in single and three phase, with ratings from 1 to 3 HP (750-2200W). Built with quality construction using a durable one-piece pump housing constructed of Dura-Glas™ Sta-Rite's industry leading glass-reinforced composite resin. Fast cleaning with a new Quick-Lock trap covering permits fast access to strainer basket. Large see-thru lid makes it simple to check for debris. A strong, sturdy, specially-designed base dampens sound and vibration, making the Max-E-Pro one of the quietest pumps in its class.