DONT GO TO Fire Equipment in Medford. I had one done and never asked a price. They tested it, and then filled it. I was talking and just handed the guy my CC, $98 later I was pissed when I realized it. I could have bought a new one. Arco doesn't do it anymore? I was just there about a month ago. They didn't do it there, but if you didn't need it right away they take them and then they wait and send them all out. They wait til they get a truck load, and send them out, unless things have changed. I have had them fill one a year past the date. I just tell them its for my tank and didn't seem to care.