Hydro Royal swimming pool heat pumps are quiet, powerful, and efficient. These heat pumps offer state of the art technology and easy to read LCD controls. Manufactured with a scroll compressor, the quietest compressor manufactured. The spa timer allows for shutoff after use eliminating the need to manually turn off. Hydro Royal units are backed by an unparalleled warranty. The Hydro Royal series comes with a Titanium Turbo Heat Exchanger which never rusts or erodes and comes with a lifetime warranty.