This is a 1HP high performance pump designed for above ground systems. It is a direct replacement for Hayward, Sta-Rite, and Pac-Fab above ground pumps. With a 1 year warranty, high performance, and low price, the Advantage Above Ground Pump is a great buy. Unique diffuser design provides maximum flow rates at low amps for higher head pressure, resulting in longer filter maintenance cycles, and cleaner performance. Includes a one year warranty. These single speed products are not available for use on residential pools in CA, AZ, FL, CT, RI VT due to local and state regulations regarding energy efficiency. We recommend you select one of our 2 Speed or Variable Speed products for that application in those markets. Return Shipping is the Responsibility of the Buyer ***Returning Merchandise will be accepted only for defective merchandise.*** Free Shipping within the continental USA does not include Hawaii or Alaska We do not ship to Guam or Puerto Rico