They're all about the same price. Max Power, Millennium, US Chrome and Power Seal USA. I've used all of them and they all know what they're doing. Power Seal USA has been getting most of our stuff this year because they turn it over fast. If the cylinder is cracked or has any sign of detonation at the top of it, it's going to need to be welded and that's an additional charge. Make sure you take the cylinder completely apart before you ship it or you'll be getting billed for that service as well.