4 male plugs
Up to 220 V 16A
To start/stop a device (massage pump, blower or spotlight for instance) of your Spa.
It is a bistable switch, the contactor change of position for each pneumatic impetus coming from the air pipe.
It is a mechanic system, the modern installation tend to use more digital control that are more costly and more complicated to install.
With most of the pneumatic control devices.
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