Used Attwood Float Switch Automatic With Cover.
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The automatic float switch converts any bilge pump that draws 12-Amps (at 12-VDC) or 6 amps (at 24-VDC) or less to fully automatic operation
It features a compact, low-profile design that mounts on any surface from horizontal up to a 24Degree angle. No large voltage drop which reduces bilge pump output like some reed switch designs.
Incorporates a reliable and affordable mechanical switch that actuates pump motor at 2" water level. Wire leads do not flex or hinge with the float as on some competitive models.
Integral cover dampens bilge sloshing to reduce pump cycling, and prevents debris interference. Sealed switch mechanism resists moisture, fume ignition and electrical shock.
Contains no mercury, a "persistent toxic substance" listed as a health hazard in more than 26 states