I think you might have the wrong switch in mind.
There are no rubber pipes connected to the switch I'm looking for, just metal (aluminum) pipes. If you check out the diagram I linked to above, you may be able to tell if we're talking about the same thing. At the point where the switch connects to the metal block-shaped juncture of pipes there's a bolt type of ring that looks like it would accept a wrench. Looking straight down at it, there's an electrical connector facing up.