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Extra pins on replacement potentiometer for K-12 tube kit?

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I was looking for a replacement potentiometer for my K-12 tube kit as I needed a longer rod for the enclosure I'm putting it in when I found this one at radioshack. It is 100K and Stereo just like the one in the kit, and looks identical except it has 2 extra pins on the top. I just want to make sure that these pins aren't necessary and that the potentiometer (which otherwise looks pretty much identical) has the same pinout as the one I'm replacing. I have included a picture, thanks so much for your help:

An externally hosted image should be here but it was not working when we last tested it.
 
These are used sometimes for a "loudness" control feature. It is a tap at the halfway point of the conductive track. These taps are not needed for your application and can either be ignored OR you can do as I have done before and just snap them off right at the pcb if clearance is an issue. HTH.
 
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