Maytronics Dolphin™ Wave 140 99997140-US Yellow Robotic Pool Cleaner. Extra-wide for maximum cleaning efficiency, the Wave 140 is the perfect solution for large university, fitness clubs, YMCA, and resort pools up to 127 feet, including those with beach entry. With a wide cleaning path of 22 inches, this robot excels at floor scrubbing and heavy-duty dirt collection, for an extremely clean swimming pool.