that link is just for the generic Tee-type towers made by perlick. there are many different faucet choices, finishes, and contruction material options. there is no way for us to know what specifically you are looking at. there are 12 options alone on that page, and those do not include options that were offered in the past, or any previous faucet/tower models that have been discontinued. even if you knew exactly what year this tower was made, that wouldnt tell you which options it had. you will have to get that info from the seller.
they are most likely standard-mounting faucets, though. also be aware that a "stainless finish" isnt necessarily stainless steel. and a "stainless steel tower" does not mean that the faucets themselves are specifically stainless steel.