Attwood's multi-layer primer bulbs are designed to provide up to 60% more priming output than the competition while exceeding EPA and CARB requirements for fuel evaporation.

Our exclusive three-layer design resists collapsing and hardening and ensures high output in temperatures ranging from 18°F to 122°F.

Includes high-efficiency check valves.

Exclusive three-layer construction prevents collapse under vacuum and ballooning/bursting under pressure

Low-permeation material prevents fuel evaporation

60% more output per pump than leading competitors

Exclusive high-efficiency check-valves for faster priming and low fuel restriction (less than 1kpa restriction at 50 liters/hour)

Engineered hose barbs and stainless steel stepless clamps for leak-free performance

Compatible with Ethanol blended fuels

EPA and CARB certified

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