i saw some neps that look like the gubler plants at home depot my suggestions are:Nepenthes Rafflesiana;Nepenthes maxima xgynmphora,"piernensis",Rokko X veitchii,sanguania,tobaica,talangensis,truncata,trusmadiensis,veitchii,or ventricosa.
i found photo of these plants on www.nepenthesaroundthehouse.com
gubler neps kind of look like this
i found photo of these plants on www.nepenthesaroundthehouse.com
gubler neps kind of look like this