Upgrade your boat’s bilge system with the Attwood Automatic Float Switch (Model 4202-7). This mercury-free, moisture-resistant switch converts manual bilge pumps into automatic operation for safe, unattended pumping in harsh marine conditions. Sold without a cover.
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Model: 4202-7 Automatic Float Switch
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Automatic operation: Converts manual bilge pumps to automatic safety with a simple, reliable float mechanism
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Activation: 2" activation triggers pump precisely when water reaches 2 inches to prevent flooding
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Voltage: Input Voltage 12V and 24V
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Amperage capacity: 12A
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Construction: Mercury-free and sealed; moisture-resistant design to endure harsh marine conditions
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Low-profile design: Compact footprint that fits on nearly any mounting surface
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Mounting versatility: Designed to be mounted on any surface from horizontal up to a 24° incline
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Test feature: Built-in test knob for quick checks
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Warranty: Three-year limited warranty
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Dimensions: 2 5/8" H x 3 7/8" W x 4 1/4" L
With this float switch, your bilge pump activates automatically when water reaches about 2 inches, reducing the risk of flooding while you’re away from the boat. The automatic operation eliminates constant monitoring, and the built-in test knob makes it simple to verify proper function. Its mercury-free, sealed construction resists moisture and salt, helping the switch perform reliably in harsh marine environments. The compact, low-profile design fits on nearly any mounting surface and supports both 12V and 24V systems. A three-year warranty provides added peace of mind as you upgrade non-automatic pumps to automatic safety.
| Amperage capacity |
12A |
| Dimensions |
2 5/8"H x 3 7/8"W x 4 1/4"L |
| Input Voltage |
12V and 24V |
