Dolphin Oasis Z5 Robotic Pool Cleaner with Caddy and Remote Three motor design, one independent pump motor pumps 4,233 gallon per hour for premier suction ability while the two drive tracks are powered by twin industrial DC motors giving the Oasis Z5 split brushes. This means the Z5 can turn like a tank and gives it fantastic wall climbing, and waterline scrubing ability. Combined with an internal Gyro the cleaner can run a straight line, even on concave surfaces. Cord swivel with 360 degree movement eliminates tangles for tangle free cleaning. Oasis Z5 Head, 60' floating cable with swivel, power supply, remote, and 2 sets of filters included in the box. 3 Year Warranty with rock solid protection. Not pro-rated, or limited to hours or cycles. Top warranty in its class. Tried and true design, the premier workhorse of the Dolphin fleet.