To connect two components at the same time to the tap. With the Dual Supply of GARDENA it is possible to connect two irrigation devices in one tap at the same time. The outputs are fully adjustable. You can connect two GARDENA automatic watering programmers to them. The Dual Supply can be converted into a Profi GARDENA maximum flow system with the Profi of the Profi system (Ref. Code 2801-20). The GARDENA Dual Flow is suitable for 33.3 mm (G 1 ") threaded taps.