Primer Bulb. 5/16". Scepter brand

Scepter (Canada) brand.
Features petrol and solvent (alcohol) resistant construction.
Stainless steel primer bulb clamps
Dual internal check valves to ensure a more rapid prime while preventing back fuel flow. 
High fuel flow design.
For 5/16" (8mm) hose.

(Supersedes FU03494-10)