These superior vacuum heads will clean a pool bottom in up to half the time, even with low flow suction. Superior suction chamber concentrates vacuum velocity from both ends, as well front to back. Has metal swivel handle on stainless-steel shaft and strategically placed weights for balance and ease of operation. Adjustable wheels increase or decrease vacuum velocity and special flex strips guide debris into exclusive suction chamber. Swivel connection for 11 ⁄2" vacuum hose while 2" fits directly on body. Recommended for service pros who demand the best