What's this for and where does it go?

[Daggz68]

Went to check my pollen filter ( don't think it's ever been changed :-( ) and this is fitted around it through the metal clips ( 1st pic) . What's it for and where does that end go?

Thanks

 

[StefanA38L]

Battery breather vent IIRC

What Does A Battery Vent Tube Do? Is It Necessary?

When it comes to the important components of a car, batteries are always on the top. They are essential for the functionality of a car. If the battery of

energylast.com

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[Daggz68]

Thanks. Probably not needed on a non standard battery then