Where do you get your CO2 around Topeka, Ks area.

[Zefrik]

I am in topeka ks, and I cannot find anywhere to fill up a co2 tank! Everywhere is all swap out. Anybody in the area know where I can find a place. I think the only place is Praxair in Lenexa Ks, but that is kind of far. I will call to see if they do refills tommorow.