The Oase Y-Pice in a neat and tidy unit ideal for controling flow to filter systems, waterfalls etc. The inlet to this Y-piece fitting is a 2" BSP thread, a hosetail is supplied to fit this to take flexi pipe sizes 38mm,32mm and 25mm hose. The two outlet have 1.5" male BSP threads and also come with hose tails to take flexi pipe sizes 38mm,32mm and 25mm.The flow of water on each outlet can be controled by the use of the built in ball valves.