Synthetic rubber construction ensures long-lasting durability in harsh environments
Resistant to gasoline and ethanol for compatibility with a wide range of fuels
Unaffected by glow fuels and smoke oils, reducing risk of fuel contamination
Solid yellow color for easy identification in fuel lines
Summarized by Shop
S449- Universal stopper is made of synthetic rubber (Floroelastomer, FMK) and is unaffected by gasoline and ethanol. It is also resistant to glow fuels and smoke oils.