Another possibility with a 1" hole is to use one of those universal carboy stoppers and whatever size hose fits over the top of that.
I really like those stoppers: I find they stay put in carboys better than the rubber stoppers. I'm thinking of drilling a larger hole in my bucket lid so that I can use those stoppers in there as well.
Bottle conditioning: Robust Porter
Drinking: Saison Dupont clone, tripel
Coming soon: Columbus APA, Rich Red ale