An automatic one-line water timer containing 15 preset cycles, selected using an exclusive control rotary knob. Simply by turning the knob to any one of the 15 numbered notches you can set the program required in a matter of seconds. All the programs available are summarized in a diagram printed on the cover. The unit is fitted with a washable stainless steel filter. 3/4” (20-27 mm) tap connector. One 9 V alkaline battery can power the unit for an entire season. The electronic components are perfectly sealed. With an operating pressure range of 0,5 to 10 bar, Aquauno Logica is 100% quality controlled and tested.