Outboard Fuel Primer Bulb - (3 sizes 6/8/10mm hose I.D.)
3 sizes :
Inline rubberized fuel bulb with greater flexibility in all weathers.
We have kept with the American branded that has higher capacity and stainless steel spring within the check valve. They are a priming pump designed for fuel use and the simple squeezing action in conjunction with the one way valve creates a suction and thus priming effect.
1/4" (6mm) generally suits outboards to 20hp
5/16" (8mm) generally suits outboards to 90hp
3/8" (10mm) generally suits outboards above 90hp