Upgrade your bilge protection with the Attwood Automatic Float Switch w/Cover for 12V and 24V systems. This compact, low-profile switch turns any bilge pump into a fully automatic pump, activating at a 2" water level for reliable, hands-free operation.
Why this matters: It integrates seamlessly with most bilge setups and is designed to withstand the marine environment while delivering consistent, automatic performance when you need it most.
Key benefits
- Converts bilge pumps to fully automatic operation for hands-free reliability
- Max amp draw: 12 A at 12 VDC or 6 A at 24 VDC
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Low-profile design mounts on any surface from horizontal to a 24° angle
- Actuates pump motor at 2 inches water depth for rapid response
- Wire leads do not flex or hinge with the float (unlike some competitive models)
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Integral cover dampens bilge sloshing to reduce pump cycling and prevent debris interference
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Sealed switch mechanism resists moisture, fumes, and electrical shock
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Mercury-free design for safer operation
Specifications & compatibility
- Part No: 4201-7
- Includes 36" wire lead
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CE Rated for 12V and 24V
- Mounts independently or directly onto the rear slots of the V-Series pump bracket
- Includes an integral cover for protection against debris
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Test knob for quick pump operation verification
Prop65 notice This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.