OASE Y-Distributor, 1 1/2-Inch The Y-Distributor helps operate multiple pumps with a single filter or for distributing the flow from one pump to multiple water outlets. Each outlet is individually adjustable, allowing for independent water flow distribution. The inlet has a 1.5 in. thread and a stepped hose adapter (0.75, 1, 1.25, 1.5, 2 inch). The outlets feature 1.5 in. thread and a stepped hose adapter (1, 1.25, 1.5 inch).