Carb vacuum caps

[Baker7888]

Hey all. You know the carb vacuum caps that come in assorted sizes and colors, red, blue, yellow, etc?

Wondering if these are fuel resistant? Like if I were to use them on a small engine carb that has a water trap on the bowl would the fuel eat them?

 

[Rocknrod]

Not unless they are rated as such, I wouldn't trust them. Not sure here but I think Nitrile caps are? But they will specifically state it.

 

[MrSony]

had good luck with them.
The black ones after a year always split and crack.

 

[Kra5379]

Hey all. You know the carb vacuum caps that come in assorted sizes and colors, red, blue, yellow, etc?

Wondering if these are fuel resistant? Like if I were to use them on a small engine carb that has a water trap on the bowl would the fuel eat them?

Do you know roughly the inner diameter you’re going to need?

 

[Baker7888]

Ended up going another route. Thanks all