Do you want plain pg for diluting? If so, your local tractor supply will have it. You might find it at wally world. I haven't checked there. I use a little vg for a little vapor, but have been mixing at 80-90% pg. If it is nic pg you want, you're gonna have to order more. I purposely bought the 36mg to dilute 50/50 to 18 mg. If that is what you are doing you have about 4.5 bottles worth of pg right now so you have some time to order.....