I don’t like to have splits in my cables but I have a few that are underground that need to be extended in the crawl space.
they don’t need to be waterproof but it would be nice if they where for protection as they are under a house and should not get wet.
there are a ton of them on Amazon.
they don’t need to be waterproof but it would be nice if they where for protection as they are under a house and should not get wet.
there are a ton of them on Amazon.