The federal government considers all high pressure canisters of all sizes hazardous and they fall under government regulation. That regulation classifies them as hazardous even if the cylinder is too small to be dangerous. Therefore our cylinders end up being regulated by the federal government.
The federal government adds to or changes the regulations on such cylinders from time to time. The owner of such cylinders is required to know if the regulations change from one year to the next by doing research every year as the government will not provide you with notification that they have added to or changed the regulations. If the government adds to or changes the regulations the owner of such cylinders could be fined if they don't abide by the addition or change in regulation even if they did not know about the addition or change.
The federal government regulates the maintenance of the cylinders. These cylinders need to have periodic maintenance done by a company with specialized equipment and certified training. Owners of such cylinders are required to pay and have such maintenance done or risk a hefty fine.
We remove our customers from risk of any potential federal fine and from the work of keeping up on the maintenance and regulations associated with these cylinders by renting the cylinders to the customer. We maintain legal ownership of the cylinder and the rent pays for the maintenance and up keep associated with the cylinder. So the customer need never worry.
Since we are on the hook so to speak, we need to make sure the cylinder is properly filled and maintained and we do require that the customer have only us fill the cylinder and therefore the customer is unable to take it anywhere else to be filled.