Before choosing or filling an HPA tank, identify the exact cylinder marking, pressure rating, manufacturer and requalification record. Use the maker's manual and an approved cylinder requalifier for the applicable service details. Do not infer the interval from tank size alone.
Tank size does not tell the full service story. The cylinder marking identifies the specification and requalification details that apply to that exact product. The current eCFR cylinder requalification rule describes requirements for marked cylinders and approved requalification.
Read the tank label
| Marking | What to identify |
|---|---|
| Cylinder specification | DOT, TC or other exact approval marking |
| Service pressure | The stated pressure for that cylinder |
| Manufacturer | Exact brand and model |
| Requalification | Stamped date, identifier and next service information |
| Condition | Corrosion, dents, damage or unreadable markings |
Before filling or buying
- Locate the markings on the cylinder and photograph them for reference.
- Compare the service pressure with the marker and regulator instructions.
- Check the requalification record against applicable requirements.
- Ask the field or an approved requalifier to interpret uncertain markings.
- Do not fill a damaged cylinder or a tank whose status cannot be identified.
Compare cylinder capacities in our paintball HPA tank size chart and HPA vs CO2 guide. Browse paintball air systems.
Common questions
What do HPA tank markings identify?
The markings can identify the cylinder specification, service pressure, manufacturer and requalification information. Read the tank maker's guide for the exact format.
How often does a paintball tank need requalification?
Requirements depend on the cylinder specification and applicable rules. Check the stamped marking and ask an approved cylinder requalifier.
Can I fill a tank with a damaged label?
Ask the field or an approved requalifier to identify the cylinder and advise on its status before filling.
Does a larger tank have a different service pressure?
Capacity and pressure are separate specifications. Read both from the exact cylinder marking and maker's product information.