This vacuum head is designed to clean fibreglass and vinyl lined swimming pools. It features two air relief valves that prevent the vachead from getting stuck to the bottom of the swimming pool. The vachead is fitted with internal weights and has a spring-loaded handle which keeps the vachead submerged and flush with bottom of pool. The vachead fits standard 1 1/4" and 1 1/2" vacuum hose and has a swivel connection, which provides superior maneuverability without any hose tangling. The snap-adapt handle will fit standard 1 1/4" telescopic poles.