Description
- Description
1100 GPH Automatic AMP Sensor Bilge Pump - 12V
The B31-Series Automatic Bilge Pump offers unparalleled efficiency and reliability for marine applications. Designed with a compact, automatic operation, this high-performance pump eliminates the need for a separate float switch. With a flow rate of 1100 GPH and compatibility with both 12V and 24V systems, it is perfect for a wide range of vessels. Durable, marine-grade materials and advanced features ensure a long service life, while the quick-connect components make installation and maintenance a breeze. Whether you're upgrading or replacing a bilge pump, the B31-Series delivers powerful performance and unmatched convenience.
Features:
- Quick-Connect Wiring: Features threaded outlets and quick-connect wiring for seamless installation and maintenance. Replace the motor or base in seconds, not hours! Allows to user to switch the pump out in seconds between the quick disconnect base, quick disconnect wiring, and quick disconnect plumbing.
- Automatic Operation: No float switch is required. The pump checks for water every 2.5 minutes and activates only when needed, conserving energy and ensuring optimal performance.
- High Flow Capacity: Capable of pumping 1100 GPH, this pump is ideal for quickly removing bilge water, even in challenging marine conditions.
- Durable Marine-Grade Materials: Built with a stainless-steel motor shaft, moisture-tight seals, and marine-grade, silicon-blocked wiring, it is designed to withstand harsh marine environments.
- Submersible and Ignition Protected: Fully submersible and meets or exceeds ISO 8846 and ISO 8849 standards for safe operation in explosive atmospheres.
- Built-In Check Valve: Prevents water backflow, ensuring that your bilge remains dry and efficient between pump cycles.
- Dual Outlet Compatibility: Includes fittings for 3/4 inch and 1-1/8 inch hoses, offering flexible compatibility with existing plumbing.
- Warranty: Backed by a 4-year warranty, providing peace of mind and reliable performance.
Specifications:
- Weight: 1.03 lbs
- Flow Rate: 1100 GPH
- Volts: 12V
- Current: 4.0A
- Head: 12.0' (4.0m)
Included Components:
- Dual-size straight fitting (3/4 inch and 1-1/8 inch)
- Optional 90-degree angled fitting (1-1/8 inch)
- Quick-connect wiring for hassle-free setup
Specifications:
- Gallons Per Hour: 1100 GPH
- Operation: Automatic
- Outlet Size: 3/4" or 1-1/8"
- Type: Electric
- Volts: 12v
- Box Dimensions: 3"H x 5"W x 5"L WT: 1.3 lbs
- UPC: 817683023017
Refund Policy
Return Policy – Marine Tech Supplies
Effective Date: January 9, 2026
At Marine Tech Supplies, we want you to be satisfied with your purchase. Please review our return policy below.
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Return Window
All return requests must be made within 14 days of the delivery date.
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Return Eligibility
To be eligible for a return:
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Item must be unused and in original condition
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Item must be in original packaging
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All accessories, manuals, and parts must be included
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Proof of purchase is required
Items that are damaged due to misuse, installation error, or negligence are not eligible for return.
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Non-Returnable Items
The following items cannot be returned:
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Special order or custom products
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Clearance or final sale items
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Installed or used items
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Electrical components once opened
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Items returned without approval
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Return Authorization (RMA Required)
All returns require a Return Authorization (RMA).
Returns sent without approval will be rejected.
To request an RMA, contact via About section
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Return Shipping
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Customer is responsible for return shipping costs unless the error was ours
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Items must be shipped with tracking and insurance
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We are not responsible for lost or damaged return shipments
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Restocking Fee
A 15% restocking fee may apply to all approved returns.
Shipping charges are non-refundable.
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Refund Process
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Refunds are issued after inspection and approval
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Refunds are processed back to the original payment method
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Allow 5–10 business days for refunds to appear after approval
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Damaged or Incorrect Items
If your item arrives damaged or incorrect:
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Report within 48 hours of delivery
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Provide photos and order details
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We will arrange a replacement or refund at no cost
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Refused Deliveries
Refused shipments are treated as returns and may be subject to:
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Return shipping fees
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Original shipping fees
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Restocking fee
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Chargebacks
Initiating a chargeback without contacting us first may result in denial of future service.
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Policy Updates
Marine Tech Supplies reserves the right to update this policy at any time without notice.
