Water distributor with one inlet and two outlets (can also be used for 1 outlet) since the outlets come with a valve regulator for controling the rate of flow, this 2-way splitter can control which outlet the water can come out. The regulator valve can also be used with a pump which does not have a built in regulator to allow you to adjust the water flow.
The inlet has external diameter of 13mm for connections of external diameter 17mm with internal diameter 13mm hose. The 2 outlets diameter are the same as the inlet size.