Attwood Primer Bulb - 5/16" Inner Diameter Hose

Enhance your marine fuel system with our high-performance 5/16" Inner Diameter Hose Primer Bulb. Specifically designed for boating applications, this primer bulb ensures reliable priming and long-lasting, leak-free operation, keeping your vessel running smoothly on every voyage.

Superior Construction for Maritime Reliability

Crafted with an exclusive three-layer construction, this Atwood Primer Bulb guarantees exceptional durability. It resists collapse under vacuum and prevents ballooning or bursting under pressure, making it perfectly suited for the demanding conditions of marine environments.

Maximized Fuel Efficiency

Utilizing low-permeation materials, our primer bulb minimizes fuel evaporation, ensuring that your engine consistently receives the optimal fuel supply. Experience up to 60% more output per pump compared to leading competitors, providing faster and more efficient priming for your boat's engine.

Key Features

Feature	Description
Hose Compatibility	Designed for use with 5/16-inch interior diameter hoses, ensuring a secure and precise fit within your marine fuel system.
High-Efficiency Check-Valves	Exclusive check-valves deliver faster priming with minimal fuel restriction, maintaining less than 1 kPa restriction at 50 liters/hour.
Leak-Proof Installation	Engineered hose barbs combined with stainless steel stepless clamps ensure a leak-free performance, critical for safety aboard your vessel.
Fuel Compatibility	Compatible with ethanol-blended fuels and certified by EPA and CARB, meeting stringent environmental and safety standards for marine engines.

Easy Installation and Maintenance

Designed with the marine enthusiast in mind, this primer bulb features engineered hose barbs and stainless steel stepless clamps for straightforward installation. Its robust construction requires minimal maintenance, allowing you to spend more time enjoying the water and less time on upkeep.

Environmental Certifications

Our primer bulb is fully compatible with ethanol-blended fuels and holds EPA and CARB certifications, ensuring it meets the highest environmental and safety standards required for marine applications.

Additional Resources

Download the Quick Guide (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.