EPA Low Permeation Primer Bulbs

Attwood's new low permeation primer bulbs meet all EPA and California Air Resources Board (CARB) requirements.
These patent pending multi-layer primer bulbs are designed to provide up to 60% more priming output than leading competitors, for less pumping to prime the engine.

Attwood's exclusive three-layer bulb construction and rubber formulation ensures high fuel pumping output from 18°F to 122°F.
The strong inner layer incorporates a unique expansion ring to prevent collapsing under vacuum during engine operation, while the middle layer prevents fuel permeation, and the tough outer layer prevents ballooning or bursting under pressure.

The bulbs include dual high-efficiency check valves that prime in any orientation with low-restriction fuel flow to ensure faster priming and proper engine operation and fuel pump service life. fewer strokes to prime.

• EPA and CARB Certified; tested to ABYC H-25 and USCG requirements
• Three-layer construction for longer life and faster priming with fewer strokes

• Low-restriction check valves provide better fuel flow and engine performance
• Low permeation primer bulb prevents prevents fuel evaporation saving gas and money
• Injection molded for strength and durability
• UV resistant – no cracking or hardening over time
• Compatible with ethanol-blended fuels
• Engineered hose barbs are designed to be leak free
• Meets or exceeds engine fuel flow requirements for all OEM brand engines (1hp - 350hp)
• 2 Year Warranty