2 oz. Refills - will they fit into my kit?

[mroll]

I buy the 2oz. bottles and refill the 0.75oz. bottles from them. I keep the 2oz. bottles in a dark, cool place.

So if I buy a 2 oz bottle and and keep it in a cool dark place..will it last till next year? Just ran out of 0871 for chlorine testing............(Plan on closing up pool by the beginning of October)