Mayfair/Johnson Float Switch

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Automatic switch
For fully automatic bilge pumping operation, connect the automatic switch to your bilge pump.

The automatic switch has a time-proven micro switch without mercury.
When water exceeds the acceptable level, the pump is turned on by a rolling steel ball, which changes the pressure on the micro switch. The automatic switch can work with any 6V, 12V, 24V or 32V DC bilge pumps and attaches directly to Mayfair/Johnson bilge pumps by means of the clip on the "T-slot" and can be used with
For a better and safer life afloat!