Primer Bulb Low PermeationPrimer Bulb Low Permeation The Primer Bulb Low Permeation is designed to efficiently prime fuel systems while minimizing fuel vapor loss. Constructed with low permeation materials, this bulb helps reduce emissions and improves engine starting performance by delivering fuel quickly and reliably. Top Features & Benefits Low permeation material reduces fuel vapor emissions Efficiently primes fuel systems for quicker engine starts Durable construction for