35 percent more powerful than the original Hercules, designed by award winning engineers to be powerful, but remain safe and kind to the body. With the addition of the handball pump and hose the power is completely controllable taking the pressure to a maximum safe legal limit. Smart Latch Valve, making the pump easier to fill in the shower. New improved comfort pad, making the unit easier to seal against the body.Also ncludedXtreme X20 Hydropump Carry CaseMeasuring GaugeCleaning SpongeHandball PumpComfort Insert PadHose Attachment Pump