Hayward TriStar® W3SP3215X20XE XE 2.25 Total HP (Expert Line) are built to deliver maximum energy savings while cutting equipment costs by more than a third. With adjustable speed options, pool owners can customize their pump settings (and savings) without having to pay for more options than they need. And with easy installation and dual-voltage capability, TriStar XE is the best way to install a pump that complies with Dept. of Energy regulations in any new or existing pool.