Airow Marine Manual Bilge Pump - 4700 GPH Heavy-Duty 12V DC (50mm Outlet)

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Engineered for ultimate vessel protection, the Airow Marine 4700 GPH Manual Bilge Pump delivers reliable water evacuation in demanding marine environments. Built from corrosion-resistant, high-impact ABS plastic, this heavy-duty pump is designed to withstand harsh saltwater and bilge conditions.

  • High-capacity 4700 GPH flow rate for rapid drainage
  • Heavy-duty ABS plastic construction provides superior durability
  • Saltwater-ready, corrosion-resistant internal components
  • Standard 50mm (2-inch) outlet for efficient flow compatibility

Specification diagram for Airow Marine bilge pump showing 4700 GPH flow rate, 12V DC input, manual operation, height of 182mm, width of 158mm, and 50mm outlet.

Frequently Asked Questions

Can this pump handle continuous dry running?
This manual bilge pump is designed for water-submerged operation; while its heavy-duty ABS construction offers brief dry-run tolerance, continuous dry operation should be avoided to maximize motor longevity.
What size hose do I need for installation?
The pump features a 50mm (approx. 2-inch) outlet, which is compatible with standard 50mm ID marine bilge hoses.
Is this bilge pump automatic or manual?
This is a manual bilge pump requiring a separate float switch or manual helm switch to activate, offering full operator control over dewatering.

Engineering Specs

REV: 2025.Q4 // TECH-STANDARD
Material_Grade
Heavy-Duty Marine-Grade ABS and Stainless Steel Shaft
Surface_Finish
Injection Molded Textured Base with Smooth Fluid Outlet
UV_Resistance
UV-Stabilized High-Impact ABS Plastic
Corrosion_Rating
Saltwater-Resistant Corrosion-Proof Thermoplastic Housing
Compatibility
Yachts, Center Consoles, Commercial Vessels, Bass Boats
Hull_Integration
Fiberglass, Aluminum, Steel, Wood
Standard_Ref
Universal 2-inch Outlet Fitment

ESTABLISHED 2017

AirowMarine

Professional Marine Hardware for a Safer Voyage.

Design engineers and marine consultants reviewing technical blueprints and a stainless steel porthole window assembly in an office overlooking a container port.

Our Roots

Hong Kong Based, 8 Years of Expertise

The story of AirowMarine began eight years ago. Headquartered in Hong Kong, we have been dedicated to the global operation and brand building of marine accessories. These eight years of experience have taught us that on the unpredictable sea, every single component carries the trust and safety of the boat owner.

B2B marine hardware production: A massive mirror-polished 316 stainless steel boat anchor being hoisted for quality verification in AirowMarine’s industrial workshop in mainland China.

Supply Chain

Invested Factories in Mainland China

To ensure our products withstand extreme environments, we are more than just a bridge for trade. AirowMarine has invested in its own manufacturing facilities in Mainland China. Leveraging the region's mature and efficient industrial supply chain, we are deeply involved in the entire process—from raw material selection and precision machining to final assembly. We avoid exaggerated claims; instead, through professional logistics and rigorous quality control, we ensure every product delivered to you meets high nautical-grade standards.

Technical quality control inspection showing a Mitutoyo digital caliper measuring a polished marine fitting at 12.45mm precision.

Reliability

Strict QC & Global Logistics

As a provider of marine accessories, our business is intimately connected to the water. We believe that protecting the ocean is not just a slogan; it must be reflected in every detail of our business. Currently, AirowMarine is continuously optimizing our packaging solutions: we maximize the reduction of single-use plastics in our packaging and shipping processes, using recyclable paper-based cushioning materials whenever possible. Our products are built to power your voyage, while our packaging is designed to protect the purity of the blue sea.

Close-up of a 316 stainless steel circular louvered deck vent in eco-friendly honeycomb paper packaging with AirowMarine shipping label.

Our Mission

Protecting the Blue, Plastic-Free

We are aware that there is always room for improvement, but we have never stopped in our pursuit of excellence and environmental responsibility. AirowMarine is committed to providing you with durable, reliable, and eco-conscious marine accessories.

Expert Guidance

Technical help in 24 hours

International Delivery

Secure & Tracked Shipping

Custom Solutions

Tailored parts for your boat

Factory Direct

Invested supply, best value

Proven Quality

Tested for nautical safety