Do you refill 20# CO2 tanks?

I don't think they refill, but they do exchange.

Hi Lucas, We exchange all of our gas cylinders. You bring in an empty, we give you a full one. We carry 5 lb, 10 lb, 20 lb, and special order 50 lb Co2 Tanks as well as 20 cf and 40 cf Nitrogen tanks. Cheers, HBX

I'm not sure but just Call the store to make sure if they do they have the ability to do so before going in